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Penstemon 'Dark Towers'

Dark towers with bright lilac purple lights

The Highlights

    • Profusions of delicate, lilac flowers from midsummer
    • Stunning plum-purple foliage adds extra aesthetic interest
    • Flowers all the way from July to November
    • Create a tropical aesthetic for your garden
    • Provides vibrant colour right the way up to winter
    • RHS Certified 'Plant for Pollinators' This is an award gifted by the Royal Horticultural Society for plants that are very good at attracting and are beneficial for pollinating insects in the UK.MORE
    • Great plant to have in the middle of a bed or border scheme

Penstemon 'Dark Towers'

Dark towers with bright lilac purple lights
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The Highlights

    • Profusions of delicate, lilac flowers from midsummer
    • Stunning plum-purple foliage adds extra aesthetic interest
    • Flowers all the way from July to November
    • Create a tropical aesthetic for your garden
    • Provides vibrant colour right the way up to winter
    • RHS Certified 'Plant for Pollinators' This is an award gifted by the Royal Horticultural Society for plants that are very good at attracting and are beneficial for pollinating insects in the UK.MORE
    • Great plant to have in the middle of a bed or border scheme

Know Your Plant

Supplied as:

1 Litre Pot

Height on arrival:

Depending on the time of year, when your plant arrives it should be up to 15-30cm tall

Eventual height:

75cm

Eventual spread:

40cm

Time to first crop:

Flower colour:

Lilac Purple

Habit:

Bushy

Hardiness:

Hardy
Hardy up to -10ºC.

Rootstock:

Spacing:

30cm

Care Guide

Good Pest and Disease Resistance

This variety can have issues with Slugs and Snails as well as Powdery Mildew. For Slugs and Snails, it is important to keep the area around the plant debris free and as dry as possible, especially at night as slugs and snails love damp conditions. You can use barriers such as egg shells or copper wire to surround the plant to prevent slugs and snails reaching the leaves. It is also a good idea to spray your plant with water which has boiled some garlic in it for around 2 hours. For more serious slug and snail control you can also use specific nematodes that will find the pests and cause them to die. To prevent Powdery Mildew you should try to prevent crowded and humid conditions. Properly space plants apart and get rid of any weeds. Water at the soil and try to prevent soil splashing from the soil onto the leaves.

Water Often

Water several times a week during hot and dry periods to keep the ground evenly moist. During the non-summer months the rain should provide enough water for the plant, especially after it has established itself after its first year.

Full Sun to Partial Shade

This variety will grow in areas of moderate sunlight, including around 4-6 hours of dappled sunlight in partial shade but also grows in full sun.

Fertile, Well-Drained Soil

You will want to mix in plenty of organic matter such as garden compost into the soil before planting. If your soil is particularly clay-heavy and easily becomes waterlogged, add some perlite or gravel into the soil to improve drainage.

Feed Regularly

Apply a mulch of well-rotted manure or compost in the autumn to protect the roots and to also give the soil added nutrients to promote healthy growth. https://cdn.shopify.com/s/files/1/0513/3428/3424/files/pruning_3x_4d3eaf73-f629-45e0-87a5-6f14f5f005fc.png

For more care tips and ideas visit our Knowledge page

Planting Calendar

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  • Best time to plant
  • Harvest
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