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GERANIUM 'Johnson's Blue'
Commonly known as Cranesbill
Bright blue
Further Reading....
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Blue -
Height - 30-45cm (12-18in) -
Spread - 60-75cm (24-30in)
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Herbaceous - Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch. - rhizomatous, spreading perennial forming a dense mat of 7-lobed, mid-green, basal leaves 5-20cm (2-8in) long. Flowers 5cm (2in) across.
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Hardy - cold winter - Hardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F) -
Full sun -
Partial shade -
Additional Features - Good to know - wildlife plant - insects -
Pests & Diseases - vine weevil, slugs, snails.Viruses, downy mildew. Powdery mildew in dry conditions. -
Place of origin - garden origin -
Flower Shape - Saucer-shaped
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Hardiness - Fully hardy
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Seasonal Interest - Summer
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Soil Conditions - Fertile well drained soil
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Wildlife - Bee friendly -
Rabbit Resistant
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Geranium - Growing Guide
Herbaceous Plants - Video Collection
- Dividing Herbaceous Perennials - Video Tip ondemand_video
- Spring Planting Osteospermums - Video Tip ondemand_video
- Dividing Summer Perennials - Video Tip ondemand_video
- Dividing summer flowering Hemerocallis - Video Tip ondemand_video
- Summer propagation - Video Tip ondemand_video
- Supporting Plants - Video Tip ondemand_video
- Dead heading meconopsis - Video Tip ondemand_video
- Dead heading Delphiniums - Video Tip ondemand_video
- Feeding herbaceous peonies - Video Tip ondemand_video
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30-45cm (12-18in)
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60-75cm (24-30in) |
Useful extras...
Harrod Horticulture Plant Supports - Plant & Border Supports
Releasable plant supports
90cm high and sold in packs of 3. Each supports multiple stems with quick release.
2 options from £13.95
Harrod Horticulture Plant Supports - Plant & Border Supports
Scalloped Border Restraint
These gently scalloped restraints are ideal for holding back plants at the front of your border, giving a natural looking hold.
2 options from £27.00
Harrod Horticulture Plant Supports - Plant & Border Supports
Curved border restraints
The border restraints are made from sturdy, solid 6mm galvanised steel wire and powder coated dark olive green, available in a variety of sizes providing strong plant support to stop plants falling across lawns and paths
4 options from £14.50
Harrod Horticulture Plant Supports - Plant & Border Supports
Link stakes
Link stakes plant supports are made from dark olive-green powder coated galvanised steel wire (up to 6mm thick), merge seemlessly into the background.
8 options from £17.00
Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00
Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
2 options from £6.00
Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants.
Perfect used in conjunction with Rootgrow™.
Only £7.50
Garden Goodies
Kneeling Cushion
Protect your knees in the garden with this squishy mat.
Water-repellent and light weight.
Only £3.60
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