March care

Witch Hazel in March: monthly care

Month-by-month careHamamelis × intermedia

In March your witch Hazel needs attention: plant / sow and fertilise.

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F
M
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  • Plant / sow
  • Fertilise
Witch Hazel (Hamamelis × intermedia)
Foto: Donar Reiskoffer / Wikimedia Commons / CC BY 3.0

What to do this March

Plant / sow

Witch hazel thrives in partial shade or full sun, though some afternoon shade is beneficial in hotter spots to prevent leaf scorch. Choose a sheltered position away from strong winds, which can damage the delicate winter flowers. The soil should be moisture-retentive but well-drained loam or peat-based soil with an acidic to neutral pH; avoid chalky or alkaline conditions, which can cause chlorosis. Plant container-grown witch hazel in October, November, or March when the soil is workable and not frozen. Autumn planting is ideal as it allows roots to establish before winter, but early spring works well too. Dig a hole twice the width of the root ball and the same depth, loosening the soil at the base to encourage root penetration. Mix in plenty of organic matter such as leaf mould, well-rotted compost, or ericaceous compost to improve soil structure and acidity. Position the plant so the top of the root ball sits level with the surrounding soil—planting too deep can lead to stem rot. Space plants at least 300 cm apart to accommodate their mature spread of 250–350 cm. Backfill gently, firming the soil with your heel to eliminate air pockets, then water thoroughly to settle the roots. Apply a 5–8 cm layer of organic mulch such as composted bark or leaf mould around the base, keeping it clear of the stem to prevent rot. This conserves moisture and suppresses weeds. Stake only if planting in an exposed site, using a low stake and flexible tie. Water regularly during the first growing season to help establishment, especially in dry spells.

Fertilise

Witch hazel has a moderate water need and dislikes both drought and waterlogged conditions. Water regularly during dry spells in spring and summer, particularly in the first two years after planting. Established plants are reasonably drought-tolerant but perform best with consistent moisture, especially on free-draining soils. In winter, natural rainfall is usually sufficient. Mulch annually in early spring with a 5 cm layer of leaf mould, composted bark, or ericaceous compost to retain moisture, suppress weeds, and maintain soil acidity. Feed in March and April with a balanced slow-release fertiliser or a specialist ericaceous feed if your soil is borderline alkaline. A light dressing of blood, fish, and bone or pelleted chicken manure works well. Avoid high-nitrogen feeds, which promote soft leafy growth at the expense of flowers. If leaves turn yellow between the veins (interveinal chlorosis), your soil may be too alkaline; apply chelated iron or sulphur chips and top-dress with ericaceous compost. Witch hazel is fully hardy across zones 5a–8b and needs no winter protection. The flowers are remarkably frost-resistant, though prolonged hard frost may temporarily brown the petals—they usually recover when temperatures rise. Pests and diseases are rare. Aphids occasionally cluster on new growth in spring; a strong jet of water or an insecticidal soap will deal with them. Honey fungus can affect stressed plants, causing dieback; there is no cure, so remove and destroy affected plants. Leaf spot may appear in damp summers but is rarely serious—rake up and bin fallen leaves in autumn to reduce spore carryover. Overall, witch hazel is a robust, low-maintenance shrub once established.

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