King Arthur DahliaKing Arthur Dahlia

King Arthur Dahlia Tubers

Dahlia King Arthur (Decorative)Feefo logo

The details

  • Colour: Purple
  • Foliage: Mid-green
  • Flower Size: 10cm-15cm
  • Type: Decorative Dahlia
  • Cutting: Yes
  • Height/Spread: 100cm x 60cm
  • Flowering: July to November
  • Planting Months: End February to July
Choose a plant formWhat to expect
All
Tubers
Choose a size
Tuber
Tubers
£5.95each
Qty
1-2
3 +
£
£ 5.95
£ 4.95

Recommended extras

Sweet Pea, A Cottage Garden Collection
Sweet Pea, A Cottage Garden Collection Lathyrus odoratus Mix of 8 Plants, Min 4 Varieties From £10.95
Hidcote Lavender
Hidcote Lavender Lavandula angustifolia 'Hidcote' From £3.45
Herbaceous Collection, Bees & Butterflies
Herbaceous Collection, Bees & Butterflies Mix of 6 Varieties in 9cm Pots From £24.95

Description

King Arthur: Decorative Dahlia Tubers

King Arthur is a warm plum purple Small-Flowered Decorative type, great for cutting.

Browse our other Decorative Dahlias or our full range of Dahlias.

Features

  • Colour: Purple
  • Foliage: Mid-Green
  • Flower Size: 12-15cm
  • Type: Decorative Dahlia
  • Cutting: Yes
  • Height/Spread: 100cm x 60cm
  • Flowering: July to November
  • Outdoor Planting Months: March to July

Growing King Arthur Dahlias

All dahlias do best in deep rich soil with good drainage in a sunny spot. If it is windy they will need staking. They are greedy, thirsty plants so will need watering in dry spells, and they will always flower that little bit better if there is a bit of soluble food in the watering can once every couple of weeks.

It is generally more convenient to put support stakes in at planting time, rather than leaving it until there is foliage in the way.

Planting Companions for King Arthur

At a compact 100cm x 60cm, they look great in pots on the patio and stunning in large groups, or used as a mid-size border plant behind herbaceous perennials.

Planting Instructions

If you ignore seed, Dahlias can be planted at three stages: as tubers, rooted cuttings and pot-grown plants.

Tubers can be planted at any time from March onwards. The hole should be at least double the diameter of the tuber laid out on the ground. Incorporate about 25% well rotted compost and if drainage is in any way doubtful then add plenty of horticultural grit as well. Plant one tuber per hole, leaving 60-80 cms between plants (depending on final size) and make sure the tuber is covered with 10-12 cms (4-5") of soil. This is important as it will insulate the tuber against frosts in March-May as they will take a couple of months to show.

Rooted cuttings, which are available from early April onwards, will need to be potted up and kept in a sunny and frost free place until they are ready to be planted out in mid May. Their treatment then is the same as for tubers except they are planted level with rather than 10 cms below the surrounding soil level.

Pot grown plants are not delivered until June, and are then planted out immediately in the same way as an established rooted cutting.

The more you deadhead, the more flowers you'll get.