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Red Alder

Also known as

Oosterdyckia capensis, Oosterdykia capensis and Butter Knife Bush

Taxonomy

Scientific name

Cunonia capensis

Genus

Cunonia

Family

Cunoniaceae

Order

Oxalidales

How to care for Red Alder

💦 Water

How often to water your Red Alder

Red Alder 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 Red Alder in your home

Red Alder 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 Red Alder in your home 🏡.

🪴 Nutrients

How to fertilize Red Alder

Nutrient, fertilizer, and repotting needs for Red Alder: 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 Red Alder after it doubles in size or once a year—whichever comes first.

💡 FAQs

🐶 🐈 👶 Toxicity

Red Alder is not known to cause harm to humans or pets. Regardless, if you, a family member, a cat, or dog has ingested any plant material, please consult a doctor or a veterinarian.

🌦️ Growing Outdoors

USDA Hardiness Zone
Red Alder can be grown outdoors in USDA Hardiness Zones 9a-11b. 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.