Caring for Plumeria during Winter Dormancy

Before Dormancy: Fall Preparation Checklist

Start preparing plumeria as nights cool and growth slows, not after the first freeze warning. The why: plants enter winter healthier when fertilizer, water, pests, and storage conditions are adjusted gradually.

• Stop fertilizing before cold weather. The why: late feeding can push soft new growth that is more vulnerable to cold injury and rot.
• Reduce watering gradually. The why: dormant or slowing plumeria use much less water, and cold wet roots are one of the fastest paths to rot.
• Inspect and clean plants before storage. The why: scale, mites, fallen leaves, and damaged tissue are easier to handle before plants are crowded indoors or in a greenhouse.
• Choose the winter location early. The why: container plants are easier to move before soil is cold, wet, or too heavy, and in-ground plants need protection plans before frost arrives.
• Give seedlings, newly rooted cuttings, and recent grafts extra protection. The why: smaller root systems and tender tissue tolerate cold, drought, and storage stress less than established plants.

What Dormancy Looks Like by Growing Condition

Not every plumeria goes fully dormant. Tropical and warm greenhouse plants may keep some leaves and continue slow root activity. Subtropical, temperate, and cool indoor plants often drop leaves and stop visible growth. The why: dormancy is driven by temperature, day length, moisture, plant age, and cultivar behavior, so care should match what the plant is actually doing.

A guide to caring for Plumeria during winter dormancy, including detailed instructions for storage, greenhouse care, and in-ground planting.

In Storage

1. Temperature Monitoring: Keep the environment between 40-60°F (4-15°C).
2. Humidity Control: Maintain low humidity to prevent rot; use a dehumidifier if necessary.
3. Watering: Only water if branches significantly shrivel, using a minimal amount.
4. Light Conditions: Store away from direct sunlight in a dark or low-light area.
5. Pest Inspection: Check regularly for pests such as spider mites or scale insects.
6. Physical Inspection: Look for signs of rot, particularly at the base and branch tips.
7. Air Circulation: Ensure adequate ventilation to prevent mold and mildew.

In Greenhouses

1. Temperature Regulation: To keep plumeria in their dormant state, it is recommended to maintain temperatures between 40-60°F (4-15°C).
2. Light Management: Provide diffused light; avoid direct, strong sunlight.
3. Watering Schedule: Water very sparingly. Light misting or minimal watering if withering is observed.
4. Soil Moisture Monitoring: Please ensure no excess moisture is caused by dripping condensation.
5. Humidity and Ventilation: Balance humidity levels and ventilate to reduce excess moisture.
6. Air Circulation: It’s important to maintain good air circulation to prevent the growth of mold and mildew. Consider using a fan to keep the air moving.
7. Pest and Disease Control: Regular inspections for pests and diseases.
8. Branch Health: Prune weak or damaged branches to maintain plant health.
9. Soil Condition: Ensure the soil is well-draining.

In the Ground

1. Mulching: Apply mulch around the base for root protection.
2. Watering Reduction: Limit watering; the soil should be dry but not completely desiccated.
3. Frost Protection: Use frost cloth in areas with mild frost. In colder regions, consider relocating the plant indoors.
4. Pest and Disease Watch: Regular inspections for common pests and diseases.
5. Insulation: Insulate the ground in colder climates to maintain consistent root temperature.
6. Debris Clearing: Remove fallen leaves and debris to prevent fungal growth.
7. Branch Check: Examine branches for damage or weakness and prune as necessary.

Additional Considerations

1. Nutrient Management: Avoid fertilizing during dormancy, as it can stimulate growth.
2. Plant Support: In windy areas, provide support to prevent breakage, especially for potted plants in storage or greenhouses.
3. Bare Rooted: If your plumeria is stored without soil, check the roots for rot and make sure they are not touching concrete or other materials that will pull moisture from them.
4. Checking for Dormancy Signs: Identify signs of dormancy (e.g., leaf drop) and adjust care accordingly.
5. Planning for Spring: Towards the end of dormancy, plan to gradually reintroduce water and light to awaken the plant for spring growth.
6. Record Keeping: Record the plant’s health and any issues encountered during dormancy for future reference.

By following these comprehensive guidelines, you can provide the best possible care for your Plumeria during its dormant phase, ensuring a healthy and vigorous growth period in the upcoming season.

Healthy Dormancy vs. Warning Signs

A dormant plumeria may look quiet, but it should not look actively collapsing. The why: normal dormancy conserves energy, while rot, cold injury, dehydration, and pests can worsen while the plant is not actively growing.

• Usually normal: gradual leaf yellowing, leaf drop, no new growth, firm branches, firm trunk, and slower soil drying.
• Check more closely: soft or blackened tips, mushy stems, foul odor, wet soil that will not dry, severe shriveling, spreading spots, or visible pests.
• Water cautiously: dormant plumeria need far less water than actively growing plants, but severely shriveled plants may need a small, careful drink if temperatures are safe.
• Restart slowly in spring: increase light, watering, and feeding only as warmth, new growth, and root activity return.

Related Winter Guides

• Cold, Frost, and Dormancy Protection Checklist
• Preparing Plumerias for Winter: How-To Guide
• Should I water plumeria during dormancy?
• Waking Up from Winter Slumber

Related: Ideal Temperature Range for Plumeria and Should I water plumeria during dormancy?

Was this article helpful?

4.9 out of 5 stars

6 ratings

5 Stars		83%
4 Stars		17%
3 Stars		0%
2 Stars		0%
1 Stars		0%

5 Submit

Please Share Your Feedback

How Can We Improve This Article?

Name

Email

Submit