Black Alder

Black Alder prefers for the soil to dry out between waterings and should be watered regularly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Black Alder requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

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.

Black Alder is very sensitive to dry soil, so choose a potting soil that retains moisture. A good soil will still drain well and contain lots of organic matter such as coco coir or sphagnum moss.

Black Alder is a fast growing plant and may deplete the nutrients in its soil over time. Replenish them with a gentle organic fertilizer or compost every 1-2 months depending on your location and season. Fertilize more often during the growing season and in warmer and brighter climates.

Black Alder will branch off as it grows. To encourage branching, pinch off the newest growth at the tip and the stem will branch off into two.

USDA Hardiness Zone
Black Alder can be grown outdoors in USDA Hardiness Zones 3a-7b. Find your local hardiness zone here.

The seeds of Black Alder can be used to grow new plants! After your plant flowers, any seeds that formed can be collected and germinated in potting soil.