Dense-flowered Leek Orchid Plant Care
Prasophyllum crebriflorum D.L.Jones
Updated · Sources · How we source care data
Prasophyllum crebriflorum, commonly known as the crowded leek orchid, is a species of orchid endemic to Tasmania. It has a single tubular, dark green leaf with a purplish base and up to twenty five reddish-brown flowers.
Every 7–10 days
Bright indirect light
60–80°F
50–70%
At a glance
How do you care for Dense-flowered Leek Orchid?
Plant Dense-flowered Leek Orchid in bright indirect light (USDA zones 13a) and water a young shrub every 7–10 days until it is established. It tolerates temperatures of 60–80°F (16–27°C). Fertilize it every 6 months during the growing season.
Where Is the Dense-flowered Leek Orchid Native To?
What Is the Dense-flowered Leek Orchid?
Dense-flowered Leek Orchid (Prasophyllum crebriflorum) belongs to the Orchidaceae family within the Prasophyllum genus. Dense-flowered Leek Orchid is native to Tasmania.
Dense-flowered Leek Orchid displays a tall, slender spike growth habit, reaching up to 1.5 ft tall with a spread of approximately 0.5 ft. Dense-flowered Leek Orchid produces small, fragrant flowers in clusters.
Leaf size: approximately 6 inches.
How Often Should You Water a Dense-flowered Leek Orchid?
Water a young or newly planted Dense-flowered Leek Orchid every 7–10 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.
Watering Frequency
Every 7–10 days
Until established; then in dry spells
What Light Does the Dense-flowered Leek Orchid Need?
Dense-flowered Leek Orchid thrives in bright indirect light. Avoid placing Dense-flowered Leek Orchid in direct, harsh sunlight for extended periods, as this can scorch the foliage.
Light Requirement
Bright indirect light
What Temperature and Humidity Does the Dense-flowered Leek Orchid Prefer?
Prasophyllum crebriflorum tolerates temperatures of 60–80°F. Dense-flowered Leek Orchid prefers humidity levels of 50–70%. A pebble tray or humidifier helps maintain adequate moisture around the plant.
Temperature
60–80°F
Humidity
50–70%
What Soil Mix Works Best for a Dense-flowered Leek Orchid?
Well-draining orchid mix with bark and perlite. Good drainage is essential for Dense-flowered Leek Orchid to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Dense-flowered Leek Orchid?
Feed Dense-flowered Leek Orchid every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.
Stop feeding by late summer so new growth can harden before winter.
Fertilizing
Every 6 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
Where Should You Plant a Dense-flowered Leek Orchid?
Choose a spot with bright indirect light and well-draining orchid mix with bark and perlite. Avoid low spots where water collects after rain.
Dense-flowered Leek Orchid is suited to USDA Zone 13a.
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 Far Apart Should You Plant a Dense-flowered Leek Orchid?
Dense-flowered Leek Orchid can spread to about 1 ft (0.2 m) and reach about 2 ft (0 m) tall. Space plants about 1 ft (0.2 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.
Planning a row or hedge? Try the plant spacing calculator.
How Do You Prune a Dense-flowered Leek Orchid?
Prune Dense-flowered Leek Orchid 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 Dense-flowered Leek Orchid in Winter?
Dense-flowered Leek Orchid is frost-tender (hardy to USDA zone 13). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.
How Do You Propagate a Dense-flowered Leek Orchid?
Dense-flowered Leek Orchid can be propagated through division, seeds. Similar propagation techniques also apply to colenso's leek orchid plant care, which shares the same genus.
Is the Dense-flowered Leek Orchid Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Dense-flowered Leek Orchid, 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 Dense-flowered Leek Orchid?
Dense-flowered Leek Orchid is susceptible to aphids, spider mites, scale insects. 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.
What USDA Hardiness Zone Does the Dense-flowered Leek Orchid Need?
Dense-flowered Leek Orchid grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Dense-flowered Leek Orchid is native to Tasmania. In cooler regions, grow Dense-flowered Leek Orchid as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Dense-flowered Leek Orchid 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 Prasophyllum genus — compare its care with other Prasophyllum species on PlantoScan.
Prasophyllum is part of the Orchidaceae plant family — browse all Orchidaceae genera and species.
Dense-flowered Leek Orchid thrives in bright light and direct sun — see other bright-light plants.
More Prasophyllum Species
Other Prasophyllum species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Prasophyllum crebriflorum D.L.Jones, family Orchidaceae (first published in Muelleria 18: 103 (2003)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Dense-flowered Leek Orchid, 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.
- Hardiness zone: USDA Zone 13a, calculated from the plant's minimum temperature.
- 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.
