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This guide is for gardeners looking to add striking, tall blue, yellow, and white blooms to their summer borders. The Unwins Lupin Blue Javelin offers a vigorous and hardy annual plant that reaches an impressive 1.2m (4ft), providing a beautiful focal point with a light scent and tactile, downy leaves. A potential caveat is its need for support to maintain upright flower spikes for cutting.
| Model Part Number | 30210639 |
|---|---|
| Brand | Unwins |
Sow seeds between March and May for best results. You can start them indoors in pots or sow directly outside after the last frost.
This variety typically reaches a height of 1.2 meters (approximately 4 feet).
Yes, due to their height, it is recommended to support the flower spikes with canes or plant supports to keep them upright, especially if you intend to cut them for arrangements.
Absolutely. It pairs well with plants like Heleniums, Rudbeckias, and ornamental grasses, fitting nicely in the center of borders.
As a pea plant, it fixes nitrogen from the air into the soil, enriching it and benefiting subsequent leafy perennial plantings.
After flowering, chop down the stems and dig them into the soil. This process adds nutrients back into the ground.
Unwins Lupin Blue Javelin is a hardy annual, meaning it completes its life cycle in one year and needs to be resown each season.
Ensure seeds are sown at the correct depth and the soil is kept consistently moist but not waterlogged. Try a different batch of seeds if problems persist.
Provide adequate support with canes or stakes early in the plant's growth. Ensure plants receive sufficient sunlight.
Inspect plants for slugs and snails, especially in damp conditions. Use appropriate deterrents or barriers.
Improve air circulation around plants by spacing them appropriately. Avoid overhead watering, and water at the base. Remove affected leaves and improve growing conditions.
Sowing: Sow Unwins Lupin Blue Javelin seeds between March and May. Use individual 9cm pots filled with soil, covering the seeds with a thin layer of vermiculite.
Germination: Once seeds germinate, water from below to keep the soil consistently moist. Mist the leaves occasionally.
Transplanting: In May to June, transplant seedlings into pots or directly into their final position in the garden. Aim for the center of a pot or the center of a flower bed for optimal impact.
Support: Due to their height, provide support such as canes or plant supports to keep the flower spikes upright, especially if you plan to cut them.
After Flowering: Once the lupins have finished flowering, cut down the stems and dig them into the soil. This practice enriches the soil with nitrogen.
Compatibility: Pairs well with other mid-border perennials and grasses. Its nitrogen-fixing properties benefit leafy plants.
