Potomac Orange (F1) Snapdragon Seed

Days to germination

7–14 days at 70–75°F (21–24°C).

Starting indoors (recommended)

Sow on the surface of 128-cell trays or other seedling containers 8–10 weeks before planting out. The seed needs light to germinate, so cover it only enough to hold it in place; a very fine layer of vermiculite keeps it moist and discourages algae. Water from below or mist gently so the seed is not buried. Move seedlings into cell packs or larger pots at the first true leaves, about 3–4 weeks after sowing. Direct sowing is not recommended.

Pinching (optional)

For bushier plants with more flowering side shoots, pinch young plants back by half once they have 4–6 leaves or stand about 3–4" tall. Pinching delays flowering by a few weeks; space pinched plants 6–12" apart.

Light

Full sun to part shade.

Plant height

32–48".

Plant spacing

4–12".

Hardiness

Grown as an annual.

Stem length

12–60". Single-cut plants can give stems almost as long as the plant is tall; plants cut repeatedly give stems of about 12–36".

Vase life

7–10 days.

Cooler storage

32–40°F (0–4°C).

Harvest

Cut when the florets on the lower third to half of the spike have opened.

Soil

Rich, moist, well-drained soil with a near-neutral pH.

Uses

Cut flowers; the blossoms are also edible.

Scientific name

Antirrhinum majus

Packet

50 seeds.

Seeds per oz.

About 157,300 on average.