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Imperial Larkspur Mix

Scientific name Delphinium ajacis

About this variety

Imperial Larkspur Mix seeds produce mixed bloom on 37–48 in upright/erect plants. Annual growth and Spring/Summer bloom make it useful for borders, cut flowers, containers or meadow-style planting, pollinator value, and seed saving.About Imperial Larkspur MixImperial Larkspur Mix is an annual flowering plant with mixed color, 37–48 in mature height or spread, and an upright/erect habit. Harvest form...

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At a glance

The facts most gardeners need first

View the full variety record
100 minimum seeds per packet
Gardener experience

Easy

Germination difficulty

Easy

Germination time

10-21 Days at 55–70 °F seed-zone soil temperature

  • Germination
    10-21 Daysa seed-zone soil temperature of 55–70 °F
  • First bloom / maturity
    90-99 DaysCounted from sowing to the primary bloom or market stage used for the listed maturity range.
  • Sun
    Full sun
  • Support and spacing
    Stake recommended · space 8 in · rows 18 in
  • Growth habit
    Upright or erect · Annual · 37–48 in tall
  • Best use
    Borders, cut flowers, containers or meadow-style planting, pollinator value, and seed saving
Secure checkout Details
Generic
Triple-tested seed qualityRegular quality and germination checks support every packet.

We regularly test seed quality and germination as lots move through storage and packing. We stand behind the seed we send and want customers to contact us when a packet does not perform as reasonably expected.

1-year seed warrantyCoverage begins on the date of purchase.

When properly stored, planted, and cared for, we guarantee reasonable germination and true-to-type growth for one year from the date of purchase. Conditions outside our control—including extreme weather, pests, unsuitable storage, and gardener error—are excluded. Contact us when something is not right so we can review the situation and work toward a replacement, refund, or another fair resolution.

Non-GMO / BE seed policyWe do not buy or sell genetically engineered or bioengineered seed.

Every seed variety we sell is non-GMO.

USDA’s National Bioengineered Food Disclosure Standard defines bioengineered foods as containing detectable genetic material modified through in vitro recombinant DNA methods in ways not achievable through conventional breeding or found in nature.

  • Hybrid means parent lines were conventionally crossed; hybrid does not mean GMO.
  • Heirloom and open-pollinated describe how a variety is maintained and reproduced.
  • Organic certification is separate and is shown only when verified for the individual product.
Packed in Colerain, North CarolinaPrepared in our seed room for gardens across the country.

Seeds are packed and shipped from Colerain, North Carolina. Our packets use forestry-certified paper, and we use recyclable paper mailers where appropriate. AONSK is also a 1% for the Planet partner while continuing to reduce waste in packing and fulfillment.

Garden tools

Need a plan for your space?

Use the garden-fit planner and soil calculator to turn the recorded growing facts into a practical plan.

Open garden tools Uses this product’s recorded growing information. Local weather and garden conditions may vary.

Variety field guide

What to expect from Imperial Larkspur Mix

Imperial Larkspur Mix seeds produce mixed bloom on 37–48 in upright/erect plants. Annual growth and Spring/Summer bloom make it useful for borders, cut flowers, containers or meadow-style planting, pollinator value, and seed saving.

Read the complete product descriptionTraits, flavor, garden use, variety notes, and the full catalog record

Imperial Larkspur Mix seeds produce mixed bloom on 37–48 in upright/erect plants. Annual growth and Spring/Summer bloom make it useful for borders, cut flowers, containers or meadow-style planting, pollinator value, and seed saving.

About Imperial Larkspur Mix

Imperial Larkspur Mix is an annual flowering plant with mixed color, 37–48 in mature height or spread, and an upright/erect habit. Harvest form or size: Flower or head form characteristic of Imperial Larkspur Mix; mature plant 37–48 in. Botanically it is Delphinium ajacis. Maturity or first bloom: 90-99 Days; germination: 10-21 Days at 55–70 °F. Best for borders, cut flowers, containers or meadow-style planting, pollinator value, and seed saving. Grown for ornamental or habitat use rather than as a food crop.

History and provenance

Imperial larkspur belongs to the old cottage-garden tradition of annual larkspurs. The accepted name used here is Delphinium ajacis; Consolida ajacis remains a widely encountered synonym. Kew places the species from southern Europe through western Asia and the western Himalaya. The Imperial mixture is treated as a maintained color strain, not as a documented single-breeder release. A complete public breeder or release record for the named Imperial Larkspur Mix strain has not been located. The cultivar name is retained, but no person, community, date, or place of origin is assigned without reliable documentation. Imperial Larkspur Mix offers tall, elegant flower spikes in a rich blend of cool and romantic colors, creating a classic cottage-garden display. These Larkspur Seeds - Imperial Larkspur Mix produce graceful plants with densely packed blooms that add height, softness, and beauty to borders and cutting gardens. Loved for their old-fashioned look and bouquet value, they are a wonderful choice for gardeners who want layered seasonal color and refined floral texture. Larkspur Seeds - Imperial Larkspur Mix belongs to a plant lineage long associated with Mediterranean and Old World garden agriculture.

Growing facts

Scientific name Delphinium ajacis
Life cycle Annual
Maturity / first bloom 90-99 Days
Germination 10-21 Days at 55–70 °F
Seed depth 1/4 in
Plant height / spread 37–48 in
Growth habit Upright/Erect
Spacing 8 in between plants; 18 in between rows
Sunlight Full sun
Soil Loamy; pH 6.5–7.0
Water Moderate
Support Stake

Starting Imperial Larkspur Mix from seed

How to grow Imperial Larkspur Mix

Botanical identity: Delphinium ajacis. Life cycle: Annual.

Sow 1/4 in and use a seed-zone temperature near 55–70 °F. Expected emergence: 10-21 Days. Use clean seed-starting conditions, the listed depth and temperature, and steady moisture without saturation.

Plant during Spring/Fall. Space plants 8 in apart with 18 in between rows or planting bands.

Provide Full sun, moderate water, and loamy near pH 6.5–7.0. Support: Stake.

Garden performance and care

For a longer display of Imperial Larkspur Mix, remove spent blooms unless seed is being saved. Give the plant its listed spacing, cut flowers with clean tools, and leave selected heads to mature fully for seed. Expected emergence is 10-21 Days; the listed maturity or bloom timing is 90-99 Days.

Harvest, bloom, and uses

Imperial Larkspur Mix is suited to borders, cut flowers, containers or meadow-style planting, pollinator value, and seed saving. Its mixed flowers and 37–48 in stature help determine whether it belongs in a border, cutting row, container, meadow edge, or restoration-style planting. Grown for ornamental or habitat use rather than as a food crop.

Saving seed

Choose several healthy, true-to-type plants rather than saving from one unusually early or large individual. Allow seed structures to mature fully beyond the ornamental stage, harvest in dry weather, and finish drying under cover. Clean out chaff and damaged seed, keep the lot labeled through every step, record isolation and selection, and store fully dry seed in a cool, dark, low-humidity place. Confirm the species pollination system before promising varietal purity.

Common problems

Common concerns: damping-off from saturated media; poor emergence from wrong temperature or depth; leggy seedlings from weak light; crowding and weak airflow; lodging in wind or rain; feeding damage from slugs, caterpillars, beetles, or mammals; foliar disease under prolonged leaf wetness. Management: use clean media, the sowing depth and temperature, strong light, appropriate thinning, and morning irrigation at soil level. Match support to plant height before wind becomes a problem. Inspect regularly and use the least disruptive control appropriate to the pest, plant, and pollinator setting. Remove diseased debris and rotate annual flower beds where recurring disease is severe.

Frequently asked questions

When is Imperial Larkspur Mix ready?

90-99 Days from sowing to the primary bloom or market stage used for the listed maturity range

How long does germination take?

Expect 10-21 Days near 55–70 °F; actual emergence changes with moisture, seed condition, and soil temperature.

How large does it grow?

About 37–48 in with an upright/erect habit. Support: Stake.

Can it grow in a container?

Possible in a large container, raised bed, or in-ground planting with room for the mature plant

How is it used?

Primary role: Borders, cut flowers, containers or meadow-style planting, pollinator value, and seed saving. Grown for ornamental or habitat use rather than as a food crop.

Can I save seed?

Yes where the crop biology allows, but keep compatible varieties isolated, use several healthy plants, wait for full seed maturity, dry thoroughly, and label the lot.

Minimum Seed Count:100 seeds

Garden toolsOpen the garden-fit planner, planting-window questions, or soil calculator only when useful

Uses this product’s recorded growing information. Local weather, soil, and garden conditions may vary.

Garden-fit planning for this variety

Will Imperial Larkspur Mix fit your garden?

Use your space, timing, light, soil, water, and growing preferences to make a more informed choice. Start with the essentials, then open only the detail groups that matter to you.

Rules-based · no AI · optional answers

Add an optional ZIP code and planting date for a broad frost-window check.Use local forecasts and measured soil temperature for final planting decisions.
1Essential fitTiming, light, and space
2Temperature and exposureOptional microclimate detail
3Soil, drainage, and waterRoot-zone readiness
4Questions for this garden seedCrop-specific decisions
5Seed-starting fit and patienceMatch the propagation work
Recorded product profileBeginnerEasyRead why
Soil test, pH, drainage, and amendment calculator Have a laboratory soil report? Enter pH, nutrients, texture, bed size, and site observations here. Open soil tools
Recorded soil typeLoamy
Recorded pH range6.5–7.0
Water needsModerate
LightFull sun

Laboratory report interpreter

Soil readiness for Imperial Larkspur Mix

Delphinium ajacis

Enter only the values your report provides. The result compares them with this crop’s recorded needs and keeps laboratory recommendations authoritative.

Core report valuesStart here
Advanced laboratory valuesOptional method-aware detail

Full growing record

Complete growing and seedkeeping record

Starting and plantingSeed preparation, sowing, germination, transplanting, spacing, and early establishment
How to grow Imperial Larkspur Mix

Botanical identity: Delphinium ajacis. Life cycle: Annual.

Sow 1/4 in and use a seed-zone temperature near 55–70 °F. Expected emergence: 10-21 Days. Use clean seed-starting conditions, the listed depth and temperature, and steady moisture without saturation.

Plant during Spring/Fall. Space plants 8 in apart with 18 in between rows or planting bands.

Provide Full sun, moderate water, and loamy near pH 6.5–7.0. Support: Stake.
Season-long growing guideWater, fertility, support, weather response, pollination, containers, and care through maturity
How to grow Imperial Larkspur Mix

Botanical identity: Delphinium ajacis. Life cycle: Annual.

Sow 1/4 in and use a seed-zone temperature near 55–70 °F. Expected emergence: 10-21 Days. Use clean seed-starting conditions, the listed depth and temperature, and steady moisture without saturation.

Plant during Spring/Fall. Space plants 8 in apart with 18 in between rows or planting bands.

Provide Full sun, moderate water, and loamy near pH 6.5–7.0. Support: Stake.
Harvest, storage, and usesRecognizing maturity, harvesting cleanly, handling and storage, kitchen uses, and garden roles

Harvest and storage

Harvest and use - Imperial Larkspur Mix. 90-99 Days. Principal harvest form or size: Flower or head form characteristic of Imperial Larkspur Mix; mature plant 37–48 in; color at the main harvest or mature stage: Mixed. Best for borders, cut flowers, containers or meadow-style planting, pollinator value, and seed saving. Grown for ornamental or habitat use rather than as a food crop. For seed saving, allow selected fruit, pods, ears, or seed heads to reach full biological maturity rather than using the normal eating or cutting stage. Choose several healthy, true-to-type plants rather than saving from one unusually early or large individual.

Uses and garden roles

Imperial Larkspur Mix is suited to borders, cut flowers, containers or meadow-style planting, pollinator value, and seed saving. Its mixed flowers and 37–48 in stature help determine whether it belongs in a border, cutting row, container, meadow edge, or restoration-style planting. Grown for ornamental or habitat use rather than as a food crop.
Seed savingSelection, pollination, isolation, full maturity, cleaning, drying, labeling, and storage
Choose several healthy, true-to-type plants rather than saving from one unusually early or large individual. Allow seed structures to mature fully beyond the ornamental stage, harvest in dry weather, and finish drying under cover. Clean out chaff and damaged seed, keep the lot labeled through every step, record isolation and selection, and store fully dry seed in a cool, dark, low-humidity place. Confirm the species pollination system before promising varietal purity.
Pests, diseases, and troubleshootingPrevention, diagnosis, environmental disorders, common damage, and first-response checks
Common concerns: damping-off from saturated media; poor emergence from wrong temperature or depth; leggy seedlings from weak light; crowding and weak airflow; lodging in wind or rain; feeding damage from slugs, caterpillars, beetles, or mammals; foliar disease under prolonged leaf wetness. Management: use clean media, the sowing depth and temperature, strong light, appropriate thinning, and morning irrigation at soil level. Match support to plant height before wind becomes a problem. Inspect regularly and use the least disruptive control appropriate to the pest, plant, and pollinator setting. Remove diseased debris and rotate annual flower beds where recurring disease is severe.
Frequently asked questionsDecision-focused answers that supplement the detailed guides above
Frequently Asked Questions - Imperial Larkspur Mix

When is Imperial Larkspur Mix ready?
90-99 Days from sowing to the primary bloom or market stage used for the listed maturity range

How long does germination take?
Expect 10-21 Days near 55–70 °F; actual emergence changes with moisture, seed condition, and soil temperature.

How large does it grow?
About 37–48 in with an upright/erect habit. Support: Stake.

Can it grow in a container?
Possible in a large container, raised bed, or in-ground planting with room for the mature plant

How is it used?
Primary role: Borders, cut flowers, containers or meadow-style planting, pollinator value, and seed saving. Grown for ornamental or habitat use rather than as a food crop.

Can I save seed?
Yes where the crop biology allows, but keep compatible varieties isolated, use several healthy plants, wait for full seed maturity, dry thoroughly, and label the lot.
History and provenanceBotanical identity, cultivar history, regional or cultural context, uncertainty, and source records

Scientific name: Delphinium ajacis

Common name: Larkspur

Cultivar or variety: Imperial Larkspur Mix

Imperial larkspur belongs to the old cottage-garden tradition of annual larkspurs. The accepted name used here is Delphinium ajacis; Consolida ajacis remains a widely encountered synonym. Kew places the species from southern Europe through western Asia and the western Himalaya. The Imperial mixture is treated as a maintained color strain, not as a documented single-breeder release. A complete public breeder or release record for the named Imperial Larkspur Mix strain has not been located. The cultivar name is retained, but no person, community, date, or place of origin is assigned without reliable documentation. Imperial Larkspur Mix offers tall, elegant flower spikes in a rich blend of cool and romantic colors, creating a classic cottage-garden display. These Larkspur Seeds - Imperial Larkspur Mix produce graceful plants with densely packed blooms that add height, softness, and beauty to borders and cutting gardens. Loved for their old-fashioned look and bouquet value, they are a wonderful choice for gardeners who want layered seasonal color and refined floral texture. Larkspur Seeds - Imperial Larkspur Mix belongs to a plant lineage long associated with Mediterranean and Old World garden agriculture.

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Customer experience

Reviews for Imperial Larkspur Mix

Customer Reviews

Based on 4 reviews
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25%
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A
Anonymous (United States)

Great

Thank you for your positive feedback! We're glad you enjoyed the seeds.

M
Mary Holt (United States)

I have not planted yet, but will do so late fall

Hi Mary, thanks for sharing! We hope your planting goes wonderfully in late fall. Feel free to reach out if you need any tips. Happy gardening!