Solanum tuberosum 'Edzell Blue'

RHS Plant Profile

potato 'Edzell Blue'

Annual Biennial

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A bushy perennial grown as an annual vegetable for its edible tubers. A second early potato with bluish-purple skin and white flesh. The tubers are round and quite small. A floury potato, making it good for baking, frying and mashing

Position

Full sun, Partial shade

Soil Types

Clay, Loam, Sand

Max Height

0.5-1 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 1 year
Max Spread: 0.5-1 metres
Max Height: 0.5-1 metres

Growing Conditions

Clay Loam Sand

Moisture: Moist but well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: South–facing or West–facing
Exposure: Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H2

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Solanaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Bushy, Clump forming
Potentially harmful: Harmful if eatenexcept potato crop. Wear gloves and other protective equipment when handling. Pets (dogs): Harmful if eatenexcept potato crop - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Solanum can be annuals, perennials, evergreen or deciduous shrubs or twining climbers, with simple or pinnnately lobed leaves and star- or bowl-shaped, 5-lobed flowers with prominent stamens, followed by fleshy fruits
Name Status: Accepted

How to Grow

Cultivation

Grow in fertile, moisture-retentive soil for high quality and heavy yields. Improve soil by adding organic matter in autumn. Draw earth up around the stems as they emerge, to exclude light and prevent the potatoes from becoming green. Water well in dry periods. Potatoes can also be grown in large containers or potato gro-bags. See potato cultivation for further advice

Propagation

Grow from certified seed potatoes

Suggested planting locations and garden types

Patio and container plants

Pruning

No pruning required

Pests

May be susceptible to cutworms, slugs, wireworms, leaf and bud eelworm, Potato cyst nematodes

Diseases

May be susceptible to honey fungus (rarely), Potato scab and Potato blight and may be susceptible to Potato rot, Potato blackleg and stem canker