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Jack-in-the-pulpit · Arisaema triphyllum

Why is my Jack in the pulpit losing its leaves?

Jack in the pulpit is a woodland plant that naturally goes dormant as the season ends. Check your soil moisture first to see if the plant is simply finishing its growth cycle.

Check these first

  1. Check the current season to see if it is time for dormancy.
  2. Feel the soil to see if it is completely dry.
  3. Inspect the base of the stem for signs of rot.

Likely causes

  1. Natural Dormancy

    Most likely

    How to tell: The leaves yellow and collapse in late summer or early autumn. This is the plant preparing for winter rest.

    What to do: Stop watering once the foliage turns brown and dies back completely. Allow the corm to rest in dry soil until spring growth emerges.

  2. Extreme Drought

    Most likely

    How to tell: Leaves wilt and drop prematurely while the soil is bone dry. The plant cannot support its foliage without consistent moisture.

    What to do: Water the plant thoroughly until moisture runs out the drainage holes. Maintain a schedule of watering every 3 to 7 days to keep the soil damp.

Find out what's wrong with your jack-in-the-pulpit

The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

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When to worry

It is normal for this plant to disappear entirely by late summer. Worry only if the leaves drop while the plant is still in its active spring or early summer growth phase.

Stopping it coming back

Keep the soil consistently damp throughout the spring and summer months to support healthy growth.

Keep your jack-in-the-pulpit healthy from here

Save your plant in Pocket Botanist and you get care reminders timed for this plant, plus a care history that shows what worked. Identification and a health check are free.

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Questions people ask

Will my plant come back next year?
Yes, as long as the corm remains healthy in the soil, it will sprout again when the weather warms up.
Should I cut off the dying leaves?
Wait until the leaves are completely brown and crispy before trimming them back. This allows the plant to pull energy back into the corm.

More problems with Jack-in-the-pulpit

Back to the Jack-in-the-pulpit guide

This article was generated with AI from the plant’s care profile and is general information, not horticultural advice. Read about how we build these guides.