Gemstone Blue, (F1) Anemone Seed

Gemstone Blue (F1) Anemone Seed

Vivid blue single flowers reach four to five inches
Many blooms develop on each compact plant
Sturdy stems and long harvest windows favor cutting
High-density planting maximizes flowers in limited space

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Key Attributes

Botanical Name

Anemone coronaria

Days to maturity

125 Days

Sun

Full Sun

Packet

10 Seeds

About Gemstone Blue, (F1) Anemone Seed, Anemone Seed

Cut flower Anemone series, Gemstone Blue, offers vibrant blue blooms. This anemone boasts large 4-5" blooms on sturdy stems. Longer harvest window offers an advantage for home and market growers.

Growing details

Planting

Sow Depth

1/8"

Days to Germination

14–28 days

Germination Type

C30 - Cold Moist 30 Days

In-row plant spacing

6-9"

Plant profile

Life Cycle

Tender Perennial

Hardiness Zone

Zones 7-10

Plant Height

18 inches

Growth Habits

Upright, Mounding

Seed & variety

Seeds Per Ounce

51,000

Color

Blue

Seed Type

Hybrid

Before Planting

A loose, humus-rich bed gives young anemones the best start. Site it in sun or light shade where water drains promptly and wind will not batter emerging stems. Because seed dormancy differs among anemone species, follow the packet’s chilling instructions rather than applying one treatment to every variety.

Planting

Begin in trays well ahead of the intended transplant date. Scatter the seed over moist medium, press it into contact, and add only the light covering specified on the packet. Maintain the recommended cool germination conditions. Move emerged seedlings into bright light, separate them before roots tangle, and acclimate them gradually to outdoor conditions.

Watering

Fine seedling roots dry quickly, so check trays daily instead of following a fixed schedule. In the garden, soak the root zone when the surface starts to dry and let surplus water escape. Reliable moisture is especially important while transplants settle and buds develop.

Fertilizer

Seedlings need little feeding until true leaves form. A weak balanced solution can then support steady growth without forcing soft stems. Outdoors, compost-rich soil is often sufficient; add fertilizer only when plant color or growth indicates a shortage.

Harvesting

For bouquets, cut when the buds show full color and the first petals begin loosening. Morning-cut stems hold best when transferred immediately to clean water. Gardeners saving seed should leave a few strong flowers untouched until their heads mature and dry.

Tips

Give each transplant enough room for air to move through the foliage. A permanent label helps locate dormant plants later in the season. Shield small plants from hard freezes, hot drying winds, and competition from aggressive neighboring growth.

Pests & Diseases

Seed-started anemones can suffer damping-off before later developing Botrytis, powdery or downy mildew, and rust. Use sterile mix and clean containers, sow without crowding, and keep seedlings moist but not saturated. After transplanting, water below the foliage, maintain airflow, and remove infected leaves or collapsing plants quickly.

Slugs and flea beetles are most threatening while plants are small; aphids, thrips, and leafminers appear later on foliage or buds. Look closely at new growth, remove isolated pests by hand, and reserve insecticidal controls for damage that is actively increasing.