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John's award-winning dahlia collection for pots

dahlia collection

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How to care for John's award-winning dahlia collection for pots:

Dahlia tubers can be planted outside after frost, or started off in pots under glass in late winter to early spring. Plant them horizontally approximately 12cm deep, making sure the ‘eyes’ are uppermost. Allow enough room between each tuber so the plants can grow and spread to their full size without being overcrowded.

While in growth, provide a high-nitrogen liquid feed each week in June, then a high-potash fertiliser each week from July to September. Stake with canes or brushwood if it becomes necessary. In mild areas, leave them in situ over winter, but protect the crown with a generous layer of dry mulch.

In colder areas, carefully lift and clean the tubers once the first frosts have blackened the foliage and allow them to dry naturally indoors. Then place the dry tubers in a shallow tray, just covered with slightly moist potting compost, sand or vermiculite and store in a frost-free place until planting out again.

What's included:

In each collection you will receive one tuber of each of the following:

  • Dahlia 'Gallery Art Deco' (Gallery Series): Grows to XXcm.

  • Dahlia 'Waltzing Mathilda': The colouring of this gorgeous dahlia is hard to describe. The flowers are a peachy-orange with a red flush - like a really spectacular sunset, and the foliage is dark and brooding, so creates an impressive backdrop. A late summer treat for the herbaceous border, or a good-sized pot. Grows to 1.4m.

  • Dahlia Dahlegria Tricolore ('Dahlgr85') (PBR) (Dahlegria Series): Bred for pots yet equally striking in garden beds, the petite stature and vivid blooms of Dahlia 'Dahlegria Tricolore' provide eye-catching flair through the late season wherever grown. This tuberous rooted perennial reaches just 60cm tall with dramatic dark purple-flushed foliage, and starting in mid-summer and continuing until the first frosts, abundant petite blooms 7cm (3in) across emerge, showcasing a tricolour blend of pink, peach, and bold red. Grows to 60cm.
  • Flowering period:
    • Jan
    • Feb
    • Mar
    • Apr
    • May
    • Jun
    • Jul
    • Aug
    • Sep
    • Oct
    • Nov
    • Dec
    Position:

    Full sun

    Rate of growth:

    Fast-growing

    Soil:

    Moderately fertile, moist but well-drained soil, or peat-free general purpose compost

    Hardiness:

    Borderline hardy (will need protection in winter in colder areas)

    • InformationThis bulb dies back after flowering each year and enters a period of rest ahead of regrowth the following season.
    • InformationHumans/Pets: Ornamental bulbs - not to be eaten

    Product options

    Product options image
    BU30004298
    1 × collection | 3 tubers
    £17.77 £5.92 each
    available to order from winter
    Unavailable
    Product options image
    BU30004299
    2 + 1 FREE collections | 9 tubers
    £53.31 £5.92 each
    available to order from winter
    Unavailable
    1
    Delivery options (pick your preferred option at checkout)
    Bulbs (only)£4.99
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