Seed Varieties for Greenhouse Production | Johnny's Selected Seeds

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It's important to be selective when choosing seeds for greenhouse growing. You want high-yielding varieties to maximize your investment in the structure, along with the necessary disease resistance for maintaining plant health. Johnny's is here to help you decide what to grow in a greenhouse. We have identified the following top-performing greenhouse vegetables, flowers, and herbs to ensure your success.

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Truchas Romaine Lettuce (Cos)

Truchas

Organic Pelleted Lettuce Seed

Compact, filled-out mini heads that are dark red even in the North.

Chantilly™ Bronze Snapdragon

Chantilly™ Bronze

(F1) Snapdragon Seed

Early, open-faced flowers.

Avignon Deep Orange II Cool Season (Groups 1–2)

Avignon Deep Orange II

(F1) Snapdragon Seed

Versatile Group 2 snapdragon.

Excelsior Pickling Cucumbers

Excelsior

Organic (F1) Cucumber Seed

Attractive, high-yielding greenhouse pickler with excellent flavor.

Potomac Royal Warm Season (Groups 3–4)

Potomac Royal

Pelleted (F1) Snapdragon Seed

Pelleted seed for ease of sowing.

Costa Rose II Snapdragon

Costa Rose II

(F1) Snapdragon Seed

Versatile Group 2 snapdragon.

Avignon Silver II Snapdragon

Avignon Silver II

(F1) Snapdragon Seed

Pale blush-pink for spring and fall production.

Sashimi Seedless and Thin-skinned Cucumbers

Sashimi

(F1) Cucumber Seed

Our highest-performing Japanese type.

Sweet™ Purple White Bicolor Dianthus (Sweet William)

Sweet™ Purple White Bicolor

Pelleted (F1) Dianthus Seed

High-quality cool-season cut flower.

Potomac Lavender Snapdragon

Potomac Lavender

(F1) Snapdragon Seed

Refined all-season series for field or greenhouse growing.

Chantilly™ Purple Snapdragon

Chantilly™ Purple

(F1) Snapdragon Seed

Early, open-faced flowers.

Breen Romaine Lettuce (Cos)

Breen

Organic Pelleted Lettuce Seed

Early producer of truly compact mini heads with bronze-red color.

ProCut® Red/Lemon Bicolor Tall Sunflowers

ProCut® Red/Lemon Bicolor

(F1) Sunflower Seed

Red petals with lemon tips and a dark disk.

ProCut® Horizon Tall Sunflowers

ProCut® Horizon

(F1) Sunflower Seed

Highly uniform addition to the ProCut series.

Potomac Appleblossom Snapdragon

Potomac Appleblossom

(F1) Snapdragon Seed

Refined all-season series for field or greenhouse growing.

Avignon Light Rose II Snapdragon

Avignon Light Rose II

(F1) Snapdragon Seed

Versatile Group 2 snapdragon.

Potomac Cherry Rose Warm Season (Groups 3–4)

Potomac Cherry Rose

Pelleted (F1) Snapdragon Seed

Pelleted seed for ease of sowing.

Corinto Slicing Cucumbers

Corinto

Organic (F1) Cucumber Seed

Our reliable and productive workhorse slicer.