Agastache 'Blackadder'

hyssop

9cm pot
pot size guide
£5.99 Buy
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3 × 9cm pots
pot size guide
£15.00 Buy
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-

The ultimate midsummer bee plant with soft, stubby blue bottle brushes tinged with black- purple -the antidote to sunny orange calendulas

Val Bourne - Garden Writer

All you can buy delivered for £4.99
  • Position: full sun
  • Soil: well-drained, fertile soil
  • Rate of growth: average
  • Flowering period: July to October
  • Hardiness: fully hardy (borderline)

    Hyssops are great for adding height to a border, with whorls of long-lasting, tiny flowers arranged like a bottlebrush, and pointed, aromatic fresh green leaves that are attractive to butterflies. They are short-lived though, and may need replacing every few years, especially after a cold or wet winter. 'Black Adder' has smoky, violet flowers on long spires from July to October. Try it as part of a Mediterranean scheme or in a sunny, well-drained border among ornamental grasses.

  • Garden care: Don't cut back the faded flower-stems until early spring, as they provide interest in the winter months. Lift and divide congested colonies in spring.

Cosmos atrosanguineus Chocamocha ('Thomocha')

chocolate cosmos

Smells deliciously chocolatey

£6.99 Buy

Molinia caerulea subsp. arundinacea 'Transparent'

purple moor grass

Tall and see-through

£9.99 Buy

Gaura lindheimeri 'Siskiyou Pink'

gaura

Long-lasting pink flowers. Copes wth drought

£8.99 Buy

Geranium (Cinereum Group) 'Ballerina'

cranesbill

A dwarf variety with pink, veined flowers

£7.99 Buy

Verbena bonariensis

purple top

Lilac-purple flowers

£6.99 Buy

Geranium × oxonianum 'Wargrave Pink'

cranesbill

Fast-growing and long-flowering

£8.99 Buy

REVIEW SNAPSHOT®

by PowerReviews
CrocusAgastache'Black Adder'
 
5.0

(based on 2 reviews)

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Reviewed by 2 customers

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(2 of 2 customers found this review helpful)

 
5.0

Beautiful and lasts all summer

By Pete

from CM12

Pros

  • Accurate Instructions
  • Attractive

Cons

    Best Uses

    • Garden
    • Outdoors

    Comments about Crocus Agastache'Black Adder':

    I didn't pinch the tops out and they reached a little under 6' (2m)! Others I grew from seed (easy) I pinched the tops out and got much bushier plants about 3' (1m) smothered in flowers and bees all summer long. Beautiful.

    • Your Gardening Experience:
    • Experienced

    Comment on this review

    (2 of 2 customers found this review helpful)

     
    5.0

    Bee's Knees

    By Mark S

    from Camden, London

    Pros

    • Attractive
    • Healthy
    • Versatile

    Cons

      Best Uses

        Comments about Crocus Agastache'Black Adder':

        This is the best plant I have found to date, acting as a magnet to bees, and butterflies. Its got a really long flowering season and is always swamped with bees. It does grow to approximately a metre high and can flop if not staked. Just a brilliant plant.

        • Your Gardening Experience:
        • Experienced

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        Overwintering Tender Perennials

        Tender perennials, such as pelargoniums, fuchsias, osteospermums and marguerites look great all summer, but unless they are given protection from the harsh winter weather, they will need to be replaced each spring. If you can do this, they will last for y

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