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Thunbergia alata Collection - Black-eyed Susans

Thunbergia Alata
Black-eyed Susan

4,3/5
11 reviews
1 reviews
2 reviews
1 reviews
1 reviews

They made quite an impression when climbing on the acer pseudo-platanus with purple leaves!

Francisca, 23/08/2021

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Collection contains 5 plants

  • 2 x Thunbergia Tangerine Slice - Black-Eyed-Susan
  • 3 x Thunbergia alata Sunny Susy Red Orange

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This plant carries a 6 months recovery warranty

More information

Orange/bicoloured Black-eyed Susans. A charming annual climbing plant with rapid growth.
Exposure
Sun
Hardiness
Hardy down to -15°C
Soil type
Silty-loamy (rich and light)
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Recommended planting time March to June
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Flowering time June to October
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Collection items (5 plants)

  • Thunbergia Tangerine Slice - Black-Eyed-Susan

    Price per single item: 3,90 €
    Find out more
  • Thunbergia alata Sunny Susy Red Orange

    Price per single item: 2,10 €
    Find out more

Description

Thunbergia alata, or more poetically Black-eyed Susan, is an annual climbing plant with charming orange and bicoloured flowers with black centres.

With rapid growth, your young plant will reach 2m (7ft) in just one summer, and will bloom continuously until September.

It is suitable for cultivation in both pots and open ground, in a sunny site. An incessant but light climber, it pairs well with perennial climbing plants and can also be used as ground cover.

We often associate it with summer flowering bulbs such as gladioli: it wraps itself around the leaves and blooms in the most unlikely places, adding a touch of whimsy to even the most rigid flower beds.

Young plants measuring 4 to 8 cm, in cases of 5 small plugs 3.6 cm in diameter and 4 cm high. Our plants are at least eight weeks old and strong enough to be planted in open ground.

Note: Please be aware that our young plug plants are professional products intended for experienced gardeners. Upon receipt, transplant and store them in a sheltered place (veranda, greenhouse, cold frame) at a temperature above 14C° for a few weeks, before planting them outdoors once all risk of frost has passed.

 

Plant habit

Height at maturity 2 m
Spread at maturity 40 cm
Growth rate normal

Flowering

Flower colour yellow
Flowering time June to October
Flower size 3 cm

Foliage

Foliage persistence Annual

Botanical data

Cultivar

Thunbergia Alata

Family

Acanthaceae

Other common names

Black-eyed Susan

Origin

Cultivar or hybrid

Other Annual collection

  1. Out of stock
    From 8,90 € 12cm pot

  2. Out of stock
    From 8,90 € 12cm pot

  3. Out of stock
    From 8,90 € 12cm pot

  4. Out of stock
    From 8,90 € 12cm pot

  5. Out of stock
    From 8,90 € 12cm pot

  6. Out of stock
    From 8,90 € 12cm pot

Planting and care

You can plant your Thunbergia Alata in the ground or in a pot. In the ground, it is imperative to wait until the last frost has passed (Black-eyed Susans cannot tolerate frost and do not tolerate temperatures below 8° (46.4°F) well). In the meantime, you can pre-cultivate them in a pot in a warm and bright place to accelerate their growth. Plant in a full sun or partial shade. They need a light and humus-rich soil. They tolerate short periods of drought quite well, but will need regular watering during hot summer weather to flower well. In pots, they need to be watered very regularly. Very floriferous and fast-growing, they reach 2m (7ft) in one summer. Remember to provide support if using them as climbers. Usually grown as annuals, they are actually very fragile perennials: by bringing them indoors in September, you can extend their flowering into autumn and winter.

Planting period

Recommended planting time March to June

Intended location

Type of use Border, Free-standing, Container, Climbing
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Planting density 5 per m2
Exposure Sun
Soil pH Any
Soil moisture all types, rich

Care

Soil moisture all types
Overwinter Can be left in the ground
4,3/5

Plug plants - Annuals

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    From 1,75 € Plug plant 3/4cm

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    From 1,40 € Plug plant 3/4cm

  9. 101
    -20% 1,36 € 1,70 € Plug plant 3/4cm

    Available in 2 sizes

  10. 28
    From 8,90 € 8/9 cm pot

  11. 140
    From 0,65 € Plug plants 3.8 x 3.2cm - Tray of 16

  12. Out of stock
    From 1,60 € Plug plant 3/4cm

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  13. 74
    -50% 1,45 € 2,90 € Plug plant 1.5/2.5 cm

  14. Out of stock
    From 9,90 € 1L/1.5L pot

  15. 96
    6,30 € the 3 • Plug plant 3/4cm

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  17. 74
    From 1,40 € Plug plant 3/4cm

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    -50% 1,05 € 2,10 € Plug plant 3/4cm

  19. Out of stock
    From 1,40 € Plug plant 3/4cm

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    From 1,60 € Plug plant 1.5/2.5 cm

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