Haplostachys haplostachya Plant Care
Haplostachys haplostachya (Gray) St.John.
Updated · Sources · How we source care data
Haplostachys haplostachya is a rare species of flowering plant in the mint family known by the common names honohono or Hawaiian mint. It is endemic to Hawaii, where it is now limited to the island of Hawaii and has been extirpated from Kauai and Maui.
Full sun to partial shade
At a glance
How do you care for Haplostachys haplostachya?
Plant Haplostachys haplostachya in full sun to partial shade.
Where Is the Haplostachys haplostachya Native To?
What Is the Haplostachys haplostachya?
Haplostachys haplostachya (Haplostachys haplostachya) belongs to the Lamiaceae family within the Haplostachys genus. Haplostachys haplostachya is native to Hawaii.
Haplostachys haplostachya displays a low spreading ground cover growth habit, reaching up to tall with a spread of approximately . Haplostachys haplostachya produces small tubular purple flowers in clusters.
What Light Does the Haplostachys haplostachya Need?
Haplostachys haplostachya thrives in full sun to partial shade.
Light Requirement
Full sun to partial shade
What Soil Mix Works Best for a Haplostachys haplostachya?
Well-draining sandy loam with added organic matter for moisture retention. Good drainage is essential for Haplostachys haplostachya to prevent waterlogging, which leads to root rot and fungal issues.
Where Should You Plant a Haplostachys haplostachya?
Choose a spot with full sun to partial shade and well-draining sandy loam with added organic matter for moisture retention. Avoid low spots where water collects after rain.
Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Do You Prune a Haplostachys haplostachya?
Prune Haplostachys haplostachya while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.
How Do You Care for a Haplostachys haplostachya in Winter?
Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.
Young and container-grown shrubs need extra protection: roots in a pot freeze much more easily than roots in the ground.
How Do You Propagate a Haplostachys haplostachya?
Haplostachys haplostachya can be propagated through seeds, stem cuttings.
Is the Haplostachys haplostachya Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Haplostachys haplostachya, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Haplostachys haplostachya?
Haplostachys haplostachya is susceptible to aphids, spider mites, whiteflies. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
Keep exploring plants
Haplostachys haplostachya is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Haplostachys genus — compare its care with other Haplostachys species on PlantoScan.
Haplostachys is part of the Lamiaceae plant family — browse all Lamiaceae genera and species.
Haplostachys haplostachya thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Haplostachys haplostachya (Gray) St.John., family Lamiaceae (first published in List & Summary Fl. Pl. Hawaiian Is. : 292 (1973)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Haplostachys haplostachya, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
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