Home/Problems/Dormancy Failure
warning

Dormancy Failure

A plant that requires a cold or dry winter rest period fails to receive one, gradually weakening the plant over subsequent growing seasons. Common in bulbs, temperate perennials, and cold-dormant carnivorous plants like Venus flytrap.

Symptoms

  • check_circleNo natural slowdown or die-back in autumn/winter
  • check_circleProgressively weaker growth each year
  • check_circleReduced or absent flowering
  • check_circleSmaller leaves or traps over successive seasons
  • check_circleGeneral decline despite otherwise adequate care

Causes

  • arrow_rightYear-round warmth indoors with no cold period
  • arrow_rightContinued fertilising and watering through the natural rest season
  • arrow_rightArtificial lighting extending day length past when dormancy should trigger
  • arrow_rightLack of knowledge that the species requires dormancy at all

How to Diagnose

Look for a plant that never stops active growth despite the season, combined with declining vigour year over year — smaller leaves, fewer flowers, or thinner traps in successive seasons confirms missed dormancy rather than a one-off issue.

Treatment

Gradually reduce watering and stop fertilising as the natural dormancy season approaches, and move the plant somewhere cooler for several weeks to months depending on species. Resume normal care slowly once new growth signals dormancy has ended.

Prevention

Research the specific dormancy requirements of each species before acquiring it. Provide an annual cold or dry rest period matching its native climate, such as a cool windowsill, unheated room, or refrigerator for bulbs.