Portulaca molokiniensis

General Plant Information (Edit)
Plant Habit: Herb/Forb
Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun
Minimum cold hardiness: Zone 9b -3.9 °C (25 °F) to -1.1 °C (30 °F)
Plant Height: 18 inches
Leaves: Evergreen
Flowers: Showy
Other: Each flower opens for one day.
Flower Color: Yellow
Flower Time: Other: Warm weather
Uses: Suitable as Annual
Propagation: Seeds: Other info: Sow the seeds on the surface of moist, sterile, well draining mix such as 2 parts perlite and 1 part potting soil. Do not cover the seeds with planting mix. Germination takes about 2 to 3 months.
Propagation: Other methods: Cuttings: Tip
Other: Allowed to dry (callous) for a day or so before planting. Recommended to root in moist coarse sand or perlite. Water only when dry, generally every other day. Rooting takes 2 to 3 weeks.
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots
Conservation status: Endangered (EN)

Conservation status:
Conservation status: Endangered
 Photo by Forest & Kim Starr

Comments:
Posted by valleylynn (Dallas, OR - Zone 8b) on Feb 24, 2012 8:46 PM

Ihi, (Portulaca molokiniensis) is a low-lying herb with thick, fleshy green leaves and small, bright yellow flowers. Portulaca molokiniensis is an extremely rare and endangered coastal species and is currently found in low numbers on Molokini, Aleale and Puu Koae Islets. P. molokinensis is one of four native species of Portulaca in Hawaii and is closely related to the indigenous P. lutea, the most common of the four.

A dwarf shrub, Less than 2 feet tall.

If kept in containers, use a 4 to 6 inch cement, terra cotta, or unglazed ceramic pots which are preferred over plastic ones.These containers tend to breath better and allow potting mix to dry out quicker, and help to maintain the health of these xeric plants. The weight of the pots will help these succulents from toppling over in windy conditions as they grow larger in the pots. Use a very dry potting mix (i.e. cactus mix) with perfect drainage.

ʻIhi is prone to slugs, ants, mealy bugs, scale, thrips, spider mites and aphids, root mealy bugs and scale. Fungal rot can be a major problem so do not let water remain on the surface. ʻIhi needs well drained soil. Water in the morning to allow the pot to dry out during the day.

This rare species of portulaca is restricted to a few coastal sites Molokini, Puʻukoaʻe Islet (Maui) and Kamōhio Bay, Kahoʻolawe. It is known to grow in volcanic tuff, detritus at base of sea cliff and on steep rocky slopes from about 30 to about 375 feet.
Plants prefer to be root bound and will do well as long as their is soil remaining in the pot.

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Plant Events from our members
HunterSThompson On December 11, 2016 Bloomed
This plant supposedly blossoms only in the summer in my area. Larger specimens do not have buds as of 12/13/2016 but smaller one has three buds, one of which opened and closed on the same day. Before the formation of these three buds, there was another one that quickly appeared and died.
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