Johnsons - Black Eyed Susan Susie Mix - 25 Seeds

Johnsons Black Eyed Susan ‘Susie Mix’ Seeds

Black Eyed Susan ‘Susie Mix’ (Thunbergia alata) is a compact, free-flowering climbing or trailing annual, perfect for small trellises, containers, hanging baskets, patios, and conservatories. This colourful mix produces masses of cheerful blooms with the classic dark “eye”, flowering reliably in the same year from sowing.

With its manageable growth habit, Susie Mix is ideal for gardeners short on space or looking to add vertical interest to pots and baskets. It performs equally well grown outdoors in summer or indoors in bright, warm conditions, making it a versatile and rewarding choice.

Key Features

Compact climbing or trailing annual

Ideal for small trellises, pots, containers, and baskets

Perfect for patios, balconies, and conservatories

Grown as an annual

Flowers in the same year from seed

Bright, colourful blooms with dark centres

Easy and rewarding to grow

How to Grow Black Eyed Susan ‘Susie Mix’ from Seed

Sowing Indoors: February to April

Sow seeds indoors into pots filled with quality seed compost. Sow 2 seeds per pot, covering lightly with a fine layer of compost. Firm gently and water carefully.

Cover pots with glass, polythene, or a propagator lid and place in a warm position at 20–25°C. Keep compost moist but not waterlogged. Germination usually takes 21–35 days.

Once seedlings appear, remove the cover and grow on at around 15°C. When plants are large enough to handle, pot on into 10 cm pots.

From late May onwards, gradually acclimatise plants to outdoor conditions, avoiding frost. Plant out 25 cm apart in their final flowering position.

Provide a small frame or support over 20 cm pots for plants to climb, or allow them to trail naturally from baskets.

Keep plants well watered and weed-free throughout the growing season.

Flowering Period

• July to October (same year)

Frequently Asked Questions

Can Susie Mix be grown indoors?
Yes. It grows very well in conservatories or bright indoor spaces, provided it has support to climb.

Does it need support?
Yes. A small trellis or frame helps plants climb and flower more freely.

Is it suitable for containers?
Absolutely. It’s ideal for pots, baskets, and containers, especially where space is limited.

Will it flower in the first year?
Yes. Susie Mix flowers in the same year from seed.

Perfect For

Patio containers and baskets

Conservatories and indoor displays

Small trellises and vertical interest

Colourful summer displays

Gardeners with limited space