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Growing Herb Plants for Direct-Market Sales

Propagating culinary herbs for plant sales: which herbs to grow from seed, seed-starting technique for light-dependent herbs, and germination requirements by crop.
By Hensley’s Seed Co.

Growing herb plants for direct market sales

A Hensley's Seed Co. guide, drawing on advice from Lynn Byczynski, founder of Growing for Market

Herb plants sell well at farmers' markets and garden centers. Most start readily from seed and are ready to sell within a few months. Some perennial herbs are slow or tricky from seed, or are cultivars that don't come true from seed, so they're usually propagated from softwood cuttings. Here's an introduction to growing culinary herbs from seed for plant sales.

Growing Herb Plants from Seed

The best-selling culinary herbs are also the simplest to start from seed. You can sow basil, chives, dill, marjoram, oregano, parsley and sage in the greenhouse just as you would vegetable transplants. Many herb buyers want organically grown plants, which means using organic seed-starting mix, potting mix and fertilizer. Organic seed is offered for many herbs.

Herbs are usually sown into open flats or channel trays set on a heat mat and potted up into their final containers or cell packs at the two-true-leaf stage. Many herbs need light to germinate, so don't cover them with mix or an opaque cover, or put them in a dark germination chamber. Wet the mix first, then sow the seed on the surface; a light dusting of sand or vermiculite keeps seed moist without burying it. A clear plastic dome or a layer of row cover raises humidity. If the flat needs water, bottom-water or mist it so the seed isn't washed around. Take the dome off as soon as the first seeds sprout so the tiny seedlings don't overheat.

Germination Requirements Chart for Herb Seeds

This chart lists germination conditions for popular seed-grown culinary herbs.

Germination needs of seed-grown culinary herbs
Herb Soil temp. for germination Cover the seed? Days to emerge
Basil 70°F (21°C) Yes, lightly 5–10 days
Chives 70°F (21°C)
Yes, lightly 7–14 days
Dill 60°F (15°C)
No, surface-sow 10–21 days
Marjoram 70°F (21°C) No, surface-sow 7–14 days
Oregano 60°F (15°C) No, surface-sow 7–14 days
Parsley 70°F (21°C) Yes, lightly about 21 days
Sage 70°F (21°C) Yes, lightly 7–21 days
Thyme 70°F (21°C) No, surface-sow 14–21 days
About the Author
Lynn Byczinski
Lynn Byczinski,
Founder of Growing for Market magazine
Lynn Byczynski grew organic vegetables and cut flowers for market before starting a magazine to help market gardeners across the country swap experience and know-how. The first issue of Growing for Market came out in January 1992, and GFM went on to become a respected source of practical, realistic advice on growing and selling produce and flowers.

She and her family have grown vegetables and cut flowers in Kansas since the late 1980s, selling through CSAs, farmers' markets, restaurants, grocers and florists.

Her books on market farming include The Flower Farmer and The Hoophouse Handbook.

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