Garden Care Guide

Clematis orientalis Care

Clematis orientalis

A vigorous clematis that is also native to Turkey and is extremely tolerant of drought and chalky soils. It is grown for its yellow, bell-shaped flowers that open in late summer/autumn and its silky seed heads that remain in winter; because it flowers on new growth, it should be pruned hard at the end of every winter.

Hardy · -25 °C / -13 °F

Monthly care calendar

Timings are for a temperate Northern Hemisphere climate. In warmer areas tasks start earlier, in colder areas later; in the Southern Hemisphere shift them by six months.

January
  • Watering: Not required; winter precipitation is sufficient.
  • Pruning: Not needed. The best time for pruning is the end of the month.
  • General care: The silky seed heads left over from the previous season offer a decorative look throughout winter.
February
  • Watering: Not needed; rainfall is sufficient.
  • Pruning: **CRITICAL PERIOD:** At the end of the month, just before the plant wakes up, prune very hard. Cut all stems to 30-60 cm above ground, leaving several pairs of buds on each stem. This is essential for abundant flowering.
  • General care: Clear away pruning debris and old leaves.
March
  • Watering: Not required, spring rainfall is sufficient. Only newly planted saplings should be watered.
  • Fertilizing: Apply a balanced fertilizer or well-rotted organic fertilizer once when it wakes from dormancy.
  • Pruning: Prune just before the shoots break. Because flowers form on this year's new shoots, hard pruning increases flowering.
  • Plant protection: Snails and slugs can damage the newly emerging shoots.
  • General care: Guide the newly emerging shoots onto the support system (wall, fence).
  • Pests & diseases: Snails and slugs are the biggest threat to fresh shoots.
April
  • Watering: If there is no rainfall, water every 15 days.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: The plant grows very rapidly this month. Keep tying the shoots to the support system.
  • Pests & diseases: Look for aphids (green or black clusters of small insects) on fresh shoot tips. If there are only a few, you can knock them off with a strong jet of water.
May
  • Watering: If there is no rainfall, water once a week.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: Spread a 5-7 cm layer of mulch over the root zone; it retains soil moisture and suppresses weeds. Do not pile mulch against the trunk.
  • Pests & diseases: Look for aphids (green or black clusters of small insects) on fresh shoot tips. If there are only a few, you can knock them off with a strong jet of water.
June
  • Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. The area around the roots should be wetted to a depth of 20-30 cm.
  • Plant protection: If symptoms spread and treatment is needed, consult a licensed plant-protection supplier or an agronomist. Plant protection products are regulated; follow local rules.
  • General care: The plant is preparing to flower, and buds are forming.
  • Pests & diseases: Look for aphids (green or black clusters of small insects) on fresh shoot tips. If there are only a few, you can knock them off with a strong jet of water.
July
  • Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. The area around the roots should be wetted to a depth of 20-30 cm.
  • General care: Flowering begins and intensifies toward the end of the month.
August
  • Watering: Water deeply twice a week; prefer infrequent and generous watering over small and frequent. The area around the roots should be wetted to a depth of 20-30 cm.
  • General care: Flowering reaches its peak.
September
  • Watering: If there is no rainfall, water once a week.
  • Pruning: Not needed; enjoy the flowers.
  • General care: This is when its yellow, bell-shaped flowers are at their best. Since it self-seeds heavily, you can remove the faded flowers if you do not want it coming up in unwanted places, but this will cost you the decorative seed heads.
October
  • Watering: If there is no rainfall, water every 15 days.
  • General care: Flowering ends and the plant gradually prepares for rest. The silky seed heads take on a decorative look.
November
  • Watering: Not needed; rainfall is sufficient.
  • General care: Leaf fall begins.
  • Pests & diseases: Clearing fallen leaves prevents fungal diseases from carrying over to next year.
December
  • General care: The plant is in full dormancy. The seed heads remain on the stems through the winter.

The care advice on this page is general and for information only; it is not professional advice. Plant age, soil and your garden’s microclimate can change the outcome. Plant protection products are mentioned only as general information; they are regulated, and the choice, dose and timing must be decided by a qualified professional under local rules. Consult a landscape architect or agronomist before applying.

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