Adenium hybrids

Cultural Information

Immediately Upon Arrival:


Remove trays from boxes.

Do not water!

Place the trays in a bright warm house, e.g. 2000-5000ft candles, 65f+ nights.

This dry warm curing period will allow plant stems, roots, and leaves to heal from any damage incurred during shipping.



Ideal Planting Conditions for Adenium hybrids

Follow these rules, and you likely will not lose one plant.

Rule One:  Plant DRY plugs into DRY potting soil. (That is not a typo. We mean DRY.)

Rule Two: DO NOT WATER the planted plugs for 2-3 days.

Rule Three: Keep warm, 70f nights.

Rule Four:  After 3 days, water lightly, just enough to wet the soil profile. USE CLEAR WATER WITH NO FERTILIZER.

This counter-intuitive culture allows these tropical desert plants time to heal wounded leaves, stems and roots before watering.  The act of transplanting damages these plants.

Early watering almost always results in heavy disease infestations and crop loss. Adding fertilizer just accelerates disease development.

Plant the plugs at the same level as the potting soil or ideally 1/8th inch below.

For the first 2 weeks, provide a warm environment, 65f+ nights, until roots reach the edge of the pots.

After the roots are well established in your potting mix, you may move the plants to a drier, brighter production house for finishing.

Avoid damaging the roots during planting.  Damaged roots are likely to become infected with soil-borne pathogens and rot.

Ideal Growing Conditions for Adenium hybrids

Moisture:  Adenium require excellent drainage.  If it is not provided, the roots rot, resulting in poor growth and death of the plant. Use a soil mix tht drains freely.  They seem to handle well aerated organic soils if the soils are kept warm and not over watered, e.g. coir fiber with night temperatures of 70f or higher.  Allow the soil to dry out beween irrigations and do not water during cool, wet, cloudy weather.

Fertilizer:  After roots hit the edge of the pots, begin to fertilize. Young plants make rapid growth if provided with a balanced fertilizer, fairly high in Nitrogen, e.g. 220ppm N.  After an initial growth spurt during the first 6 months, the growth rate slows.  Growth almost stops during the short days of winter, so fertilizer applications should be cut back accordingly.  Do not allow fertilizer salts to accumulate excessively.

Light:  5000 ft candles if there is high air movement. 2500 ft candles in areas of low air movement. Plants grown in shade, e.g. less than 1500 ft candles, tend to flower poorly, grow leggy, and are more susceptible to diseases.

Temperatures: Minimum night temperature is 55f.  They prefer a minimum night temperature of 60.  Below 60f, you will see some leaf yellowing.

Insect Pests: Thrips, Mealy Bugs, Spider Mites.  Apply preventative sprays.

Diseases:  Leaves are relatively disease free, if kept dry.  Roots are very susceptible to Pythium and Phytophthora which thrive in waterlogged soils.

Finishing Times for Adenium hybrids

Pot Size                     Number of Plugs                         Finish Time

3″-4″                                      1                                               24-48 wks


Plants bloom heavily in Spring. For us in Southern California, we get heavy flowering in April and May, with sporadic blooming through summer.

Plants need a winter rest cycle to set buds uniformly.

We plant plugs into 4″ pots in June or July, grow them in the heat of summer, hold them at 55f nights in winter, and sell as the buds open. Buds usually are visible from March on in Southern California.