August care

Meadow Cranesbill in August: monthly care

Month-by-month careGeranium pratense

In August your meadow Cranesbill needs attention: prune and watch the bloom.

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  • Prune
  • Blooms
Meadow Cranesbill (Geranium pratense)
Foto: Ivar Leidus / Wikimedia Commons / CC BY-SA 3.0

What to do this August

Prune

Meadow cranesbill doesn't require formal pruning in the way a shrub does, but a well-timed cut-back in July or August makes all the difference to its appearance and longevity. After the main flush of blue or purple flowers fades in early to mid-summer, the foliage often looks tired, sprawls untidily, and may show signs of mildew, especially in dry spells or crowded borders. The solution is simple: shear the whole plant back to about 10–15 cm above ground level once flowering finishes, typically in July or early August. Use garden shears or a pair of hand pruners for smaller clumps. This hard cut stimulates fresh basal growth that remains neat and healthy through autumn, and you'll often be rewarded with a modest second flush of flowers in September. The new foliage is clean, mound-forming, and far more attractive than the leggy stems left behind after flowering. Remove any stems that have set seed if you want to prevent self-sowing, though many gardeners welcome the seedlings that appear in cracks and gaps. If you prefer a tidier border or have named cultivars that won't come true from seed, deadhead spent flowers before they ripen or cut back promptly in July. In late autumn or early spring, clear away any remaining dead foliage to reduce slug and snail habitat and to tidy the crown before new growth emerges. This isn't strictly necessary but keeps the plant looking purposeful and makes spring feeding easier.

Blooms

Once established, meadow cranesbill is remarkably undemanding. Water regularly during prolonged dry spells in the first summer, but mature clumps cope well with moderate moisture and rarely need supplementary watering except in severe drought. On heavy clay or loam, natural rainfall is usually sufficient in our climate. Feed once a year in March with a general-purpose granular fertiliser such as blood, fish and bone or Growmore, scattered around the base at roughly a handful per square metre. Rake it lightly into the soil surface or let rain wash it in. Avoid high-nitrogen feeds later in the season, which promote soft growth prone to mildew and flop. Mulch in early spring with garden compost or leaf mould to suppress weeds and retain moisture, but keep the mulch a few centimetres clear of the crown to prevent rot. Meadow cranesbill is fully hardy to zone 3a, so winter protection is unnecessary anywhere in temperate Europe. The crown dies back completely in autumn and reappears reliably each spring. Powdery mildew can disfigure foliage in hot, dry summers or in overcrowded spots with poor air circulation, but the July cut-back usually solves this. Slugs and snails occasionally nibble emerging shoots in spring; a scattering of organic slug pellets or a barrier of grit around the crown will deter them. Vine weevil larvae can damage roots in container-grown stock, so check for notched leaf edges and treat with nematodes if necessary. Otherwise, pests and diseases are rare, and this geranium will thrive for years with minimal intervention.

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