Rehydrate dehydrated adeniums with bottom watering

Quick answer

To rehydrate a dehydrated Adenium, place its pot in a tub filled with water up to half the pot's height and let it soak for 10 to 12 hours. Repeat this process after two days, and then again after three days, to fully revive the plant.

The idea

When Adenium plants show signs of severe dehydration, such as leaves curling inwards and a soft caudex, they need intensive rehydration. The technique involves bottom watering to ensure the soil thoroughly absorbs water, which is often difficult with top watering when the soil is very dry and compacted.

1. Identify dehydration: Look for leaves that are curling inwards and a caudex (the swollen stem base) that feels soft or squishy instead of firm.
2. Prepare a water bath: Find a tub or container large enough to hold your Adenium pots. Fill it with water to about half the height of your plant pots.
3. Soak the pots: Place the dehydrated Adenium pots directly into the water bath. Ensure the water level reaches at least halfway up the pot, allowing the soil to absorb water from the drainage holes upwards.
4. Soak duration: Leave the pots to soak for an extended period, ideally 10 to 12 hours, which often means overnight.
5. Remove and drain: After the soaking period, remove the pots from the water and allow them to drain completely. Do not leave them sitting in standing water.
6. Repeat the process: To ensure full recovery, repeat this soaking process. Perform the second soak two days after the first, and the third soak three days after the second. This staggered approach helps the plant gradually recover without being overwatered.

Which plants this suits

• Adenium (Desert Rose)
• Other succulents or plants with a caudex that are prone to dehydration and prefer well-draining soil.

This method is particularly effective for plants that have become severely dry, where top watering might not adequately rehydrate the root ball.

Why it works

When soil becomes extremely dry, it can become hydrophobic, meaning it repels water, and top watering simply runs off the surface or down the sides of the pot without penetrating the root ball. Bottom watering allows the soil to slowly and thoroughly wick up water from the drainage holes. This ensures that the entire root system gets access to moisture, rehydrating the plant's tissues, firming up the caudex, and restoring turgidity to the leaves. The extended soaking time ensures deep saturation, while the repeated sessions help the plant recover its water balance over several days.

Try it

If your Adenium is showing signs of dehydration, follow these steps:

1. Confirm dehydration: Gently feel the caudex of your Adenium. If it feels soft or squishy, and the leaves are curling inwards, your plant is likely dehydrated. This is common during hot summer months.
2. Prepare the bath: Find a basin or bucket and fill it with water so that the water level will reach about halfway up your Adenium's pot when placed inside.
3. Soak overnight: Place your Adenium pot into the water bath. Let it soak for 10 to 12 hours, preferably overnight, to allow the soil to fully absorb water.
4. Drain thoroughly: After soaking, remove the pot from the water and place it on a surface where excess water can drain away completely. Do not let it sit in a saucer of water.
5. Second soak: Two days after the first soak, repeat steps 2-4.
6. Third soak: Three days after the second soak, repeat steps 2-4 one last time.
7. Monitor recovery: Over the next week, observe your Adenium. You should see the leaves gradually uncurl and become firmer, and the caudex should start to feel firm again. Once recovered, resume your regular watering schedule, ensuring the soil dries out between waterings.

Watch out for

• Overwatering after recovery: Once the plant is rehydrated, do not continue this intensive soaking. Return to a regular watering schedule appropriate for Adeniums, allowing the soil to dry out between waterings to prevent root rot.
• Poor drainage: This method assumes your pot has drainage holes. If not, water will sit and cause root rot. Always ensure good drainage.
• Soil mix: This technique is most effective with well-draining soil mixes typical for Adeniums. If your soil is very heavy and retains too much moisture, even bottom watering can lead to problems if not allowed to dry out properly afterward.
• Not a substitute for regular care: This is a rescue technique for severe dehydration, not a replacement for consistent, appropriate watering practices.