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Growing Snapdragons

Growing Snapdragons

Twinny Peach Hybrid



Snapdragons are cold-tolerant annuals with spikes of attractive flowers visited by butterflies and hummingbirds. Dwarf, tall, and trailing forms are available. Taller types make good cut flowers. Trailing types are excellent in mixed containers and hanging baskets. Snapdragons are good fall plants for warm winter climates.

How to Plant

Start snapdragon seeds in a sterile starting mix, kept at 68-70° F, 6-8 weeks prior to last frost. Seeds will benefit from light, so do not cover seed. Rather, gently press seed into soil and take care when watering to avoid disturbing seed. Expect germination in 10-14 days. Transplant seedlings to a larger pot when there are 2 sets of true leaves. To prevent transplant shock, harden off plants prior to planting outdoors.


Best in moist, well-drained soils in full sun to part shade. Overfeeding can reduce flowering, especially when plants are grown in shaded locations. Can cut back plants if they get too large, or pinch tall and trailing forms at transplant to promote branching. Avoid wetting the leaves or water early in the day to reduce the chance of disease.

Fertilizer Recommendations

Moderate feeders, snapdragons benefit from fertilization when they start blooming. Use low rates of Algoplus Flowering Plant 4-6-7 Liquid FertilizerNeptune Fish & Seaweed Fertilizer 2-3-1, or Osmocote 14-14-14.

Common Problems

Usually trouble-free plants. Aphids are sometimes a pest. Root and stem rot diseases can affect plants if grown in poorly-drained soils. Powdery mildew and rust diseases are sometimes a problem.

Alternative Products

Other cold-tolerant annuals are Majestic Giants II Hybrid PansyJung's Giant Everblooming Sweet Peas, and Jung's Hybrid Ornamental Cabbage and Kale Mix.

Complimentary Products

Other annual cut flowers are Oklahoma Mix Zinnia and Bells Of Ireland.

Product Recommendations

Use 70% Neem Oil to treat rust, mildew, and aphids.

Snapdragon Facts

Though usually grown as annuals, snapdragons are short-lived perennials in hardiness zone 7 and warmer.

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