Unwins Lupin Blue Javelin - 15 Seeds
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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.
All features
| Model Part Number | 30210639 |
|---|---|
| Brand | Unwins |
Extended Product Information
FAQs
When is the best time to sow Lupin Blue Javelin seeds?
Sow seeds between March and May for best results. You can start them indoors in pots or sow directly outside after the last frost.
How tall does Lupin Blue Javelin grow?
This variety typically reaches a height of 1.2 meters (approximately 4 feet).
Do I need to support the flowers?
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.
Can I plant this with other flowers?
Absolutely. It pairs well with plants like Heleniums, Rudbeckias, and ornamental grasses, fitting nicely in the center of borders.
What benefit does this lupin offer to the soil?
As a pea plant, it fixes nitrogen from the air into the soil, enriching it and benefiting subsequent leafy perennial plantings.
How should I care for the plants after they flower?
After flowering, chop down the stems and dig them into the soil. This process adds nutrients back into the ground.
Are these lupins a perennial or an annual?
Unwins Lupin Blue Javelin is a hardy annual, meaning it completes its life cycle in one year and needs to be resown each season.
Troubleshooting
Seeds not germinating
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.
Plants are leggy and falling over
Provide adequate support with canes or stakes early in the plant's growth. Ensure plants receive sufficient sunlight.
Leaves have holes or are being eaten
Inspect plants for slugs and snails, especially in damp conditions. Use appropriate deterrents or barriers.
Powdery mildew on leaves
Improve air circulation around plants by spacing them appropriately. Avoid overhead watering, and water at the base. Remove affected leaves and improve growing conditions.
Pros and Cons
Pros
- Adds significant vertical interest to garden borders.
- Unique color combination of blue, yellow, and white.
- Attractive, soft foliage that glistens with dew.
- Contributes to soil health by fixing nitrogen.
- Excellent for cut flower arrangements.
- Relatively easy to grow from seed.
Cons
- Requires support (canes or plant supports) to keep flowers upright.
- As an annual, it needs replanting each year.
- May require protection from slugs and snails.
- Can be susceptible to powdery mildew in humid conditions.
Setup, Compatibility & Care
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.