Lobelia Seeds 'Masterpiece Blue' - Unwins
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This guide is for home gardeners seeking vibrant, long-lasting blue blooms with minimal effort. The Unwins Lobelia 'Masterpiece Blue' offers masses of deep blue flowers perfect for hanging baskets, pots, and garden edging, providing continuous color from early summer to frost. While incredibly rewarding, success requires starting seeds indoors at the correct temperature.
All features
| Model Part Number | Unwins Lobelia Masterpiece Blue |
|---|---|
| Brand | Unwins |
Extended Product Information
FAQs
When is the best time to sow Lobelia 'Masterpiece Blue' seeds?
Sow seeds indoors from January to March. They require warmth (15–20°C) to germinate.
Can I sow these seeds directly outdoors?
No, these seeds need to be started indoors under controlled, warm conditions. Harden them off before planting outside after the last frost.
How should I plant Lobelia 'Masterpiece Blue' for the best visual impact?
Lobelia 'Masterpiece Blue' looks best when planted in masses. Avoid separating clumps of seedlings when transplanting; plant them together for a fuller display.
What kind of conditions does this lobelia prefer?
It thrives in sunny or part-shaded spots and prefers well-drained soil. It is excellent for containers, baskets, and edging.
How long will the flowers last?
The deep blue blooms will typically last from early summer right through to the first frosts in autumn.
Is this variety suitable for beginner gardeners?
Yes, while seed starting requires some attention, the plant itself is low-maintenance and easy to grow once established, making it suitable for beginners.
Troubleshooting
Seeds not germinating
Ensure consistent moisture and maintain the recommended temperature of 15–20°C. Avoid covering seeds; they need light to germinate.
Seedlings are leggy or weak
Provide adequate light and ensure temperatures are not too high. Avoid overwatering which can lead to damping off.
Plants not flowering profusely
Ensure the plant is receiving adequate sunlight (at least partial shade) and is not overcrowded. Regular watering is also crucial.
Yellowing leaves
This could indicate overwatering or poor drainage. Check soil moisture and ensure the pot or garden bed has good drainage.
Pros and Cons
Pros
- Provides continuous, vibrant blue color for an extended period.
- Highly versatile for various container and garden edging applications.
- Easy to grow and maintain, suitable for beginner gardeners.
- Offers strong performance and vigor from seed.
- Excellent for creating a carpet of color in mixed plantings.
Cons
- Requires indoor sowing and specific temperature conditions for germination.
- Seedlings may be delicate during the transplanting stage.
- Best results are achieved when planted in masses, requiring a decent quantity of seeds.
- Relies on sunlight or partial shade; performance may vary in deep shade.
Setup, Compatibility & Care
Sowing:
- Fill a seed tray with moist seed compost.
- Sow seeds thinly on the surface. Do not cover the seeds.
- Place the tray in a warm environment, ideally between 15–20°C.
- Keep the compost consistently moist.
Growing On:
- Once seedlings are large enough to handle, transplant them into trays, spacing them about 5 cm apart in fresh potting compost.
- It is often easier to transplant small clumps of seedlings rather than single ones.
- Keep seedlings in a bright location, but avoid direct sunlight.
Hardening Off & Planting Out:
- Gradually acclimate the young plants to outdoor conditions over 2–3 weeks.
- Plant out only when all danger of frost has passed.
- When planting into their final positions, avoid separating the seedling clumps; plant them together for the best effect.
Compatibility:
Lobelia 'Masterpiece Blue' thrives in sunny to partially shaded locations. It pairs exceptionally well with a wide range of bedding plants in mixed containers and baskets, including petunias, geraniums, and marigolds. It is suitable for all soil types, provided they are well-drained.
Care:
Water regularly, especially during dry periods and when grown in containers. Deadhead spent blooms occasionally to encourage further flowering. Minimal feeding is generally required if planted in fertile soil.