Tag Archives: seeds

Start Planting Cool Season, Hardy Annuals for Spring Flowers

snapdragons in the spring

Now is the time to start thinking of planting cool season hardy annuals. This is a group of annuals (grow and die in one season) that can survive the winter and thrive in cool spring weather. In the Washington DC metro area, they are planted in the fall and bloom in the spring. They spend the winter getting established so when spring arrives, they are ready to bolt out the door waving their pretty flowers before the warm season summer annuals appear.

Examples of cool season annuals are snapdragons (Antirrhinum majus), calendula (Calendula officinalis), bells of Ireland (Moluccella laevis), delphinium (Delphinium), lisianthus (Eustoma), love in a mist (Nigella), sweet peas (Lathyrus odoratus), sweet William (Dianthus barbatus), and bachelor buttons (Centaurea cyanus). Many of these make great cut flowers.

I credit everything I have learned about cool season hardy annuals to Lisa Mason Ziegler and her book, Cool Flowers: How to Grow and Enjoy Long-Blooming Hardy Annual Flowers Using Cool Weather Techniques.  Lisa manages a commercial cut flower business in Newport News, which is in Zone 7, similar to my Northern Virginia garden. In addition to growing and selling cut flowers, she writes books, gives lectures, provides free videos as well as Facebook Live presentations, and manages a website called The Gardener’s Workshop.

Several years ago I was inspired by her book to plant calendula and snapdragons in the fall. I was starting them in the beginning of the growing season and was not having great success. The weather became too hot before the snapdragons could bloom and the calendula foliage was covered in powdery mildew because of the summer’s heat and humidity. When I tried her method of starting them in the fall, they both bloomed early enough the following spring that I was able to enjoy the calendula flowers before powdery mildew set in and cut many snapdragons for indoor arrangements.

calendula flowers in the spring

This year, I plan to grow sweet peas, which I have not been able to master in the spring. Our springs are just too short to have a long blooming period. I bought a package of Botanical Interests ‘Old Spice Blend’, a fragrant, heirloom blend of various flower colors. Interestingly, sweet peas are deer resistant and attract pollinators but I am going to grow them for indoor flower arrangements so I can enjoy their beautiful, fragrant flowers in the office.

Although Lisa provides specific information for 30 flowers in her book, in general, we should start 6 to 8 weeks before the average first frost. In Northern Virginia, 8 weeks is August 31 and 6 weeks is September 15. She recommends to err on starting later rather than earlier. Some seeds can be sowed directly in the garden while others work well as transplants. Sweet peas can be done either way so I am going to do both as an experiment to see which works better in my garden. I will start half of the seeds indoors under lights and half outdoors, directly in the garden. In order to have transplants large enough to move into the ground around September 15, I would have to start sowing seeds around September 1. Then I can sow the remaining seeds around September 15. September is still a very hot month so I will have to remember to water often. If this works, next year I will post a photo of the sweet peas.

If hardy annuals are something you would like to try, you can catch up by visiting Lisa’s website, listening to her videos, and reading her book. Although she sells seeds and gardening products, you can also purchase seed packets at your local independent garden center. Good luck!

Pegplant’s Post April Giveaway: 21 packages of seed!

Cosmos, one of the flowers of the flower seed collection

For years I have been receiving the Kitchen Garden Seeds catalog as well as the newsletter. John Scheepers is a family-owned seed company that sells a large collection of vegetable, herb, and flower seeds. They produce a beautifully illustrated free catalog with detailed information on the plant itself and the varieties. This catalog is a great resource for beginner gardeners. Their website has horticultural information, an e-cookbook, and a blog. You also can subscribe to their free newsletter featuring particular vegetables, flowers, or herbs with sowing and growing information.

Borage, from the herb seed collection

The giveaway for the Pegplant’s Post April issue is three seed collections: vegetables, herbs, and flowers. Each collection has 7 packets for a total of 21 packages of seeds valued at $65.95. Only subscribers can enter the giveaway so subscribe now to Pegplant’s Post, a free gardening newsletter for the Washington DC metro area.

 

Photos courtesy of John Scheepers Kitchen Garden Seeds

Sow-a-Smile: Grow and Give Flowers This Summer

For years I have cut flowers from my garden and brought them to my office. I am no flower arranger, I just stick the zinnias, marigolds, daisies, and cosmos in a vase and put the vase on my desk. My colleagues love them. Invariably they smile and strike up a conversation. Some ask me to bring in flowers for them; some are inspired to bring in flowers of their own.

Jeannette Haviland-Jones, Professor Emeritus with Rutgers’ Department of Psychology, has researched the impact flowers have on both men and women. In three different studies, she has proven that flowers are a positive emotional “inducer.” In the first study, flowers, when given to women, elicited the Duchenne smile. The Duchenne smile is a genuine smile, an indicator of happiness. The corners of the mouth are raised, the cheeks are raised, and the eyes are crinkled with lines. In addition, the women in the study reported more positive moods 3 days later.

In the second study, a flower or a pen was given to men and women in an elevator to see if flowers have the same impact on men and also to see if flowers (versus pens) would decrease the social distance in an elevator and increase conversation initiation. Men showed the same pattern of smiling when receiving flowers. When the people in the elevator were given flowers, they were more likely to initiate conversation thus closing the gap between them. In a third study, flowers were given to people in senior living residences. The flowers elicited positive moods and improved episodic memory.

Her research proves what we instinctively know: flowers trigger happy emotions and affect social behavior in a positive way. To celebrate the power of flowers, Burpee has started a sow-a-smile campaign. They are giving a free packet of flower seeds with each purchase of annual flowers (seed or plants). The seed packet has easy-to-grow annuals such as baby’s breath, candytuft, scarlet flax, red corn poppy, calendula, cornflower, zinnia, sulphur cosmos, gloriosa daisy, plains coreopsis, and catchfly. Burpee is encouraging people to grow and give a bouquet, capture the recipient’s smile on camera, and share the images on their Facebook site. A brilliant idea – share the love! If you want to see the Duchenne smile on your friends, family, and colleagues, give flowers!

Photos courtesy of Burpee.

 

Seed Swaps: Fun Way to Get New Seeds!

It is that time of year again — seed swaps! National Seed Swap Day is Saturday, January 26, 2019, the last Saturday in January. Seed swaps are a great way to obtain new seeds, share your favorite seeds, and attend a fun event. A seed swap can be as simple as friends getting together to share seeds they saved from the previous gardening season to an all-day planned event with speakers, door prizes, and refreshments. Seed swaps can be a vehicle to teach others how to save seed, the importance of seed diversity, heirloom seeds, and other aspects of gardening. Some exchange more than seeds; tables may be set up to collect used gardening books, magazines, tools, pots, and nursery catalogs. Some may expand their definition of seeds and allow bulbs, rhizomes, and cuttings. Others include related activities such as learning to make handmade seed envelopes.

Each seed swap is different but usually organizers have established guidelines for the seed such as the type of container to use, the number of seed in each bag, and the information required on the label. Organizers should clarify if commercial seed packages or hybrid seeds are accepted. Although swaps do not want seeds from invasive plants, the organizers should clarify the definition of an invasive plant in their area.

If you are interested in attending a seed swap, ask your local county extension agent or Master Gardeners if they know of seed swaps in your area. Check out my monthly list of local gardening events at pegplant.com for seed swaps in the Washington DC metro area.

If you are interested in starting a seed swap, visit a few first to see the range of activities that could take place and the number of volunteers required. Read Seedswap: The Gardener’s Guide to Saving and Swapping Seeds by Josie Jeffery and download the Seed Savers Exchange’s 8-page handout on how to organize a seed swap. To learn how to save seeds, read my article entitled “How to Save Seeds from the Home Garden.” Happy #seedswapday!

February Pegplant’s Post Giveaway: Italian Herb Seeds

Every January I attend the Mid-Atlantic Nursery Trade Show (MANTS) in Baltimore. MANTS is a trade show serving the horticulture industry. It is a green industry marketplace for finding plants, nursery stock, and garden items wholesale. I attend as press to meet new people in the horticulture field and to learn of new businesses and products. This year, I met Joe Salerno, the owner of Salerno Seeds, a 40-year-old, family-owned New York business that imports seed packets produced and packed in Italy. The herb and vegetable seed packets are sold in a few New York retail locations and online. Joe has kindly sent me five packets for my February 2019 Pegplant’s Post giveaway: oregano, thyme, borage, arugula, and wild chicory.

This giveaway opportunity is for subscribers of Pegplant’s Post, an online, free gardening newsletter for the Washington DC metro area. Each issue provides 50 to 100 gardening events; newly published gardening books; local tips, advice, and articles; and a monthly giveaway contest.

To subscribe, click here or visit pegplant.com and enter your e-mail address in the box above “subscribe!” on the right column. Pegplant’s Post is issued on the last weekend of the month.

 

GMO Seeds: Not for Home Gardeners Like Me

I love seed catalogs. Reading them is an easy, simple way to learn about growing plants and new plants. I grow many of my edibles from seed; it’s fun, economical, and rewarding. But I am not willing to pay extra for the “non-GMO” or “GMO-free” claim I see on almost every catalog now. Even more importantly, seed catalogs should make it clear that they are offering non-GE seed, which isn’t even available to the home gardeners anyway so they are not really “offering” any more than the next seed catalog.

GMO stands for “Genetically Modified Organism.” According to the U.S. Department of Agriculture (USDA), a GMO is “an organism produced through genetic modification.” Genetically modified organisms can occur naturally or can be created by people through traditional breeding methods. For example, some plants will produce variegated leaves on their own, a desirable characteristic. Or some people will breed a plant in their backyard for a particular trait. The Mortgage Lifter tomato, an heirloom, was created when a person selected plants that had large tomatoes and bred them together to make even larger tomatoes.  The resulting plant was so good, he was able to sell the seedlings and pay off his mortgage. Many of the “new” plants for the year are bred by companies for particular characteristics. For example, most of the new flowering annuals are bred for particular flower colors. The newest petunia flower color was created by modifying genetics from parent petunias to create a hybrid that produced a particular new shade of pink.

GE stands for “Genetically Engineered,” i.e., an organism that was produced through genetic engineering. According to the USDA, genetic engineering is the “manipulation of an organism’s genes by introducing, eliminating, or re-arranging specific genes using the methods of modern molecular biology, particularly those techniques referred to as recombinant DNA.” New plants are produced by combining the DNA of a plant with something else that is not related and/or is not sexually compatible. These combinations would not normally occur in nature. For example, corn seed modified with a soil bacterium to protect the corn from corn borers or soybean that is herbicide resistant. These are human creations that can only occur by scientists, in labs, with special equipment. In our country, this is done with agricultural crops, not the seed or plants that home gardeners use.

Technically, the USDA definition of GMO is broad enough to include GE. What many people object to are GE crops; they are concerned about safety and long term effects. There are no safety concerns with genetically modified organisms so it is unfortunate that many seed catalogs use the term GMO when they mean to say GE. Seed catalogs should be clear:  they are not selling GE seeds; they are selling GMO seeds if they are selling hybrids, including open pollinated hybrids. In many of my catalogs, on one page it says “GMO free” and “we never sell genetically modified seed” yet on the subsequent pages it says “a decade in the breeding,” or “hybrid”, or “the result of a lifetime of fine breeding.” Breeding means you are working with genetics to create a desirable trait so you have genetically modified the organism but this does not mean you have created something dangerous and unsafe. It means they used traditional, horticultural practices, not recombinant DNA of a plant and a non plant.

 

 

 

Pegplant’s Post Giveaway: Botanical Interests Seed Sprouter and Seed Sampler

I am so excited about the giveaway for the September issue of Pegplant’s Post. Botanical Interests, a Colorado-based seed company with a fantastic catalog, has graciously offered to send to one winner two products: their signature Seed Sprouter with instruction booklet (valued at $24.95) and the Sprouts Sampler (valued at $28.50). The Seed Sprouter is an easy way to grow sprouts indoors for salads, sandwiches, and stir fry. The Sprouts Sampler is a collection of 6 seed packets: alfalfa, broccoli, fenugreek, mung bean, radish, and sandwich seeds. These are organic seeds especially selected for their delicious sprouts, in a drawstring bag.

This giveaway opportunity is for subscribers of Pegplant’s Post, an online, free newsletter for people interested in gardening in the Northern Virginia, Maryland, and Washington DC area. Each issue provides:

  • Monthly events. Plan your social life with gardening events in the NoVA, MD, DC area. Depending on the season, there can be over 100 events, many of which are free.
  • New books. Stay abreast of gardening trends and practices with newly published books. Use this list for ideas of gifts to buy for birthdays and holidays.
  • Tips and advice. Learn timely tips and advice relevant to the current gardening season in our area.
  • Giveaways. Enter the monthly giveaway contest to win items such as seed packets, books, tools, and plants.
  • Articles from pegplant.com. Catch up with articles from my website, pegplant.com, about plants, gardens, and resources.

To subscribe, click here or visit pegplant.com and enter your e-mail address in the box above “subscribe!” on the right column. Pegplant’s Post will be issued on the last weekend of the month.

 

How to Save Seeds from the Home Garden

Blackberry lily seeds are easy to find and save

As your plants flower and set seed and your fruit ripens on the vine, think of what you would like to save for next year. Saving seed can be easy and cost effective. In addition to saving seed to plant in your garden next year, you can give away seed packets as gifts or participate in seed swaps.

In order to save seeds, you have to separate the seeds from the fruit and dry them completely. If you strike a seed with a hammer and it shatters or if it snaps cleanly when bent, the seed is dry enough. When they are this dry, store in a cool, dark place in jars or put in envelopes. Always label with a plant name and date.

There are two methods for separating and cleaning the seed depending on the plant. Use the dry method for seeds that are in dried flowers, dried husks, or dried pods like beans, peas, grains, okra, marigolds, cone flowers, calendula, dianthus, basil, mustards, lettuce, kale, dill, fennel (any member of the carrot/dill family and the brassica/broccoli family). Use the wet method when the seeds are imbedded in the fleshy fruit, such as tomatoes, cucumbers, melons, squash, and eggplant.

Dry Method of Saving Seeds

Usually the plant has more than one flower head, each with their own timeline of flowering and setting seeds. During the summer, when the individual flower head has dried or when most of the seeds appear to be dried, cut the seed head and put in a paper bag. Cut when the stalks are brown at least an inch down from the seed head. Label the bag with the plant name and date. Continue to cut and save this way until you are ready to separate seed from fruit.

with nasturtiums, the flowers drop off and the seed will grow and become prominent months later

Some flowers, such as nasturtiums and four o’clocks, have a single flower that blooms and drops revealing a seemingly empty calyx. Soon though a seed will grow and become more prominent, making it easy to separate and save.

Beans and peas are fleshy so you can cut when the pod has become leathery or yellow and not completely dry. Let it continue to dry off the vine on a cookie sheet until the seeds rattle in the pods. For peppers, it is important to let the fruit ripen to the last color stage (many progress from green to red). For the cool season lovers such as greens (lettuce) and brassica family members such as kale, mustard, pak choi, cabbage, and broccoli, let the plant bolt (flower). Then cut and put in a bag.

Many seeds are also beautiful such as these Tiger beans

In the winter, when I can’t go outside and garden, I gather all my bags and sit down at the dining room table. I put the seed heads on a white dinner plate or a cookie sheet to make it easier to see the seeds and prevent them from rolling off the table. By this time, the seeds and husks are completely dry and I simply pull apart the seed from the husk on the plate. If it is easy to remove, like marigolds, I put the seeds in a glass jar. If it is a fine seed with a lot of husks, like pak choi, I thrash it around in a large paper bag so that the seed falls to the bottom. I pull out and throw away the stems and pods and dump out the seeds on a cookie sheet. I separate further on the plate or I use a sieve. If the seed has a lot of chaff, I continue to separate seed by screening with a sieve. Eventually I work my way down from large grocery bags to small jars.

Wet Method of Saving Seeds

For this method the fruit has to be very ripe. For pumpkins, squash, and melon, simply remove the seeds and rinse the stringy fruit parts off with water, straining with a colander. For eggplant, cut into cubes and cover with water for a day, stirring once. Squish the seeds out and clean off with water in a colander. If there are remaining seeds, repeat the process the next day to get the rest out. Put clean seeds on a cookie sheet and let dry.

Pumpkin seeds can be saved or eaten

For cucumbers, scoop seeds out and put in a jar. Add water and stir every day for 2 days. Strain to remove seeds and let dry on a cookie sheet.

For tomatoes, squeeze or cut up the flesh and put into a jar. Add enough water to be able to stir the mixture and to create volume for the pulp to separate from the seeds. I keep my jars in the kitchen out of direct light and stir daily for a few days. The tomatoes will ferment and will look gross but this process separates the seeds.

After a few days, the heavy seeds will sink to the bottom and the lighter seeds and pulp will float to the top. Skim off and throw away the top layer. Keep the heavy seeds, they are the ones that are viable. Keep adding water, swishing until the good drops down and the bad surfaces, and skim again. Keep doing this until the water is clear with good seeds at the bottom. Pour the mixture into a sieve and put the seeds on a plate or cookie sheet in a dry area, out of direct light. Every few hours, stir around until dry. You want them to dry quickly at this point in time because the moisture left on them may induce them to germinate. Once they seem dry, let them sit for several weeks until completely dry and then store in a glass jar.

Open Pollinated versus Heirloom Plants

When saving seeds, it is important to know if your plant is open-pollinated or a hybrid. If they are open pollinated, then the next generation will be the same. You will get the same plant with the same characteristics such as flower color or flavor. Heirlooms are open pollinated so you can save seeds of heirloom tomatoes and grow the same tomatoes each year.

If the plant is a hybrid, it was produced by crossing two genetically distinct parents. The hybrid was bred to have desirable characteristics such as disease resistance or better flavor. In seed catalogs, hybrids are often referred to as “F1”s – filial 1 hybrid. If you save the seed of this plant, the next generation may not retain the same desirable characteristics. You will get the same type of plant, but the plant may not be as tasty or not be resistant to a disease.

Try these simple methods to save seed for your own home garden or to give as gifts. Consider saving seeds for seed swaps with friends or local seed swap events.

General’s Choice of Trees and Shrubs is a Wise Choice for the Mid-Atlantic Gardener

 

Spring is the season for plant sales in the Washington DC area. Every weekend there are plant and garden sales, garden parties, workshops, tours, and lectures. I look forward to these annual events just as much as I look forward to seeing the cherry blossoms. One of the more interesting plant sales is Mount Vernon’s Historic Plant and Garden Sale in Virginia. This year, the month-long sale runs from Saturday April 21 to May 20, 10:00 am to 6:00 pm (members can attend the preview night on April 20). The plants are located outdoors, just outside the Mt. Vernon main gift shop, and admission tickets are not necessary. Gardening accoutrements such as tools, books, mugs, note cards, and gift items also are available. Staff horticulturists, easy to spot by their bright green shirts, are available to answer gardening questions on Wednesdays and Sundays from 1:00 to 2:00 pm.

“At length my dear Marquis I am become a private citizen on the banks of the Potomac, & under the shadow of my own Vine & my own Fig-tree.”

What sets this plant sale apart from other local sales is provenance. The Mt. Vernon horticulturists propagated most of the plants that are for sale from the plants that are grown on the George Washington’s estate. There is a wide assortment of vegetables, flowers, herbs, trees, and shrubs. Of note is the General’s Choice Collection. Staff grew ten trees and shrubs representative of those that were grown by George Washington: three types of boxwood (American, English, and tree), two edibles (pawpaw and fig), tulip poplar, southern magnolia, redbud, dogwood, and red maple. The General’s Choice Collection has distinctive tags and can be grown easily by gardeners and homeowners in the mid-Atlantic area.

In addition, the Mt. Vernon horticulturists collected, cleaned, and packaged heirloom seed from plants grown on the estate. The beautifully designed seed packets make great souvenir gifts, easy to mail. The proceeds from the plant sale support the historical museum and gardens. Every time someone purchases a plant or a seed packet, George Washington’s legacy as a gentleman farmer lives on.

“Planted all my Cedars, all my Pawpaw, and two Honey locust Trees in my Shrubberies and two of the latter in my groves – one at each ‘side’ of the House and a large Holly tree on the Point going to the Sein landing.”

Photos courtesy of George Washington’s Mt. Vernon

Tips for Starting Seeds in Your Garden: Planting in the Spring

lettuce in container

Recently, I posted an article called Tips for Starting Seeds for Your Garden. The post was about starting seeds and the importance of distinguishing between warm versus cool season plants or seed. It further explained how and when to sow seeds for warm season plants. This is the second part of the post: a focus on cool season plants.

Starting Seeds in Ground or Containers

In my zone 7 Northern Virginia garden, there are many vegetable and herbs that I can start growing outside in early spring. This means I don’t have to start them indoors under lights. Not only do these particular plants prefer cool temperatures, a light frost should not harm them. I tend to start most of my cool season plants by seed in containers on my deck. Container soil is warmer than ground soil. Also, it is easier to check on them by walking on a wooden deck than to have to trample through wet, soggy soil in cold weather. By summer, most of these types of plants have bolted (i.e., flowered and gone to seed so leaves are bitter). After pulling and discarding into the compost pile, I re-stock my containers with warm season annuals such as different types of basils and bush beans.

When to Sow Seeds in Early Spring

Using davesgarden.com and my zip code, I calculated my average last frost date to be April 30. March and April are still cool and there is a possibility of a frost or even snow. From the list of cool season plants or seeds I want to grow, I calculate which I can start at what number of weeks before April 30 and which would benefit from containers on the deck or directly into the soil. If a seed packet does not provide this information, try asking your local extension agent, online seed catalogs, or read a printed seed catalog or a gardening book. A few online seed catalogs that provide quality descriptions for this are Burpee, Johnny’s Selected Seeds, Botanical Interest, Southern Exposure Seed Exchange, and Renee’s Garden.

chervil

chervil is a spring herb

Sowing Often for Continuous Harvest

For some cool season crops, sowing every couple of weeks ensures a continuous harvest until summer. For example, our family likes to eat lettuce and spinach so if I start sowing in early spring and again every other week, I will be able to continue to pick leaves for a family of four up until summer. By summer, the weather will be too hot to germinate spinach and lettuce easily.

spinach seedlings

direct sow spinach seedlings in container

Check if the seed package recommends growing in soil or if they can be grown in a container. If you only need a little arugula, grow in a shallow container. If you only need one borage plant, grow in a larger container (it is a larger plant). Chervil is so ephemeral it is best to grow in a medium container so you can access and harvest as much as possible. For plants that tend to flower and drop seed, I find it helpful to have a patch set aside. I have parsley, cilantro, and calendula patches in the backyard so I sow the seeds directly in those patches. Of the plants below, peas are the only ones that need vertical structure. They should be planted next to a trellis and “trained” to wrap around it. I grow sugar snap peas in the ground next to a wire trellis but there are some variety of peas that can be grown in containers with stakes. Here are common cool season plants that can be grown by seed:

  • Alyssum
  • Arugula
  • Asian greens
  • Beets
  • Borage
  • Calendula
  • Carrots
  • Chervil
  • Chinese cabbage
  • Cilantro
  • Dill
  • Endive
  • Greens
  • Kale
  • Kohlrabi
  • Lettuce
  • Mache
  • Mustards
  • Nigella
  • Pak choi
  • Parsley
  • Peas
  • Radish
  • Spinach
  • Sweet peas
  • Turnips

My Cool Season Seed Plan

Just before March 15

Burpee and Botanical Interests Sugar Snap Peas: Soak overnight in water and then plant seed in small plastic pots with soil. When 2 inches tall, transplant outside in ground against trellis. No need for indoor lights.

March 15

April 1

  • American Meadows Scarlet Nantes carrot, sow in large deep container on deck and in ground
  • Renee’s Garden Slo-Bolt Cilantro, sow directly into cilantro patch in ground

April 15

  • Repeat lettuce, seed, radishes, and kale
  • Start borage in large decorative container
  • Start arugula in medium container
pak choi

direct sow pak choi seeds in ground