Knife-shaped Polystachya

Taxonomy

Scientific name

Polystachya cultriformis

Genus

Polystachya

Family

Orchidaceae

Order

Asparagales

How to care for Knife-shaped Polystachya

💦 Water

How often to water your Knife-shaped Polystachya

Knife-shaped Polystachya needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Water 0.5 cups every
9

Does your plant get direct sunlight?

No Yes

Select the pot size

☀️ Light

Finding light for Knife-shaped Polystachya in your home

Knife-shaped Polystachya may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.

Place it less than 3 feet from a south-facing window to maximize the potential for growth.

Select your region to see how the current weather in your area affects the placement of Knife-shaped Polystachya in your home 🏡.

🪴 Nutrients

How to fertilize Knife-shaped Polystachya

Nutrient, fertilizer, and repotting needs for Knife-shaped Polystachya: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Knife-shaped Polystachya after it doubles in size or once a year—whichever comes first.

💡 FAQs

🐶 🐈 👶 Toxicity

Greg does not have confirmed data on this plant’s toxicity. If you, a family member, or a pet consumes plant material of unknown toxicity, it’s always best to consult a medical professional.

If you or someone else ingested this plant, call Poison Control at US (800) 222-1222. If a pet consumed this plant, contact your veterinarian or the ASPCA at US (888) 426-4435.

🌦️ Growing Outdoors

USDA Hardiness Zone
Knife-shaped Polystachya can be grown outdoors in USDA Hardiness Zones 10a-12b. Find your local hardiness zone here.

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.