

















Allamanda Cathartica
Also known as
Golden Trumpet, Golden Trumpet, Common trumpetvine and Yellow allamanda
Taxonomy
Allamanda cathartica
Allamanda
Apocynaceae
Gentianales

How to care for Allamanda Cathartica

How often to water your Allamanda Cathartica

every 9
Allamanda Cathartica 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

Check the growing potential in your area
A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Golden Trumpet in your home

a window
Allamanda Cathartica love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Allamanda Cathartica does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Allamanda Cathartica in your home 🏡.

How to fertilize Allamanda Cathartica

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 Allamanda Cathartica after it doubles in size or once a year—whichever comes first.

Allamanda Cathartica is generally easy to care for, though some plant parents report facing challenges with growing it. Check out the reviews down below to read more about their experiences!
Water Needs
Allamanda Cathartica 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.
Sunlight Needs
Allamanda Cathartica 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 🏡.
Toxicity
Allamanda Cathartica is not safe to consume. If you, a family member, or a pet has ingested any amount of plant material contact Poison Control, US (800) 222-1222, or your veterinarian. If you have children, cats, or dogs in the home, we suggest keeping this plant out of reach.
Soil
Allamanda Cathartica does best in well-draining soil. A good soil will contain lots of organic matter such as coco coir as well as perlite or vermiculite to help with drainage. Adding a handful of perlite to regular store-bought potting soil should do the trick!
Fertilizer
Allamanda Cathartica 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.
Growth Pattern
Allamanda Cathartica is a naturally climbing plant and can be trained to climb indoors if you provide a moss pole or trellis. The newest growth will emerge from the end of the stems.
Growing Outdoors
USDA Hardiness Zone
Allamanda Cathartica can be grown outdoors in USDA Hardiness Zones 10a-11b. Find your local hardiness zone here.
Propagation
Allamanda Cathartica can be propagated by the stem method. To propagate:
- Make a cut just above the node. The node is the break in the stem where the leaf emerges.
- To get the cutting to root, you can either:
- Place the cutting in water until roots emerge and are ~2” long and then transplant into well-draining soil, or
- Place the cutting directly into well-draining soil and water when dry.
Care Summary for Allamanda Cathartica
Allamanda Cathartica
Greg recommends:

0.5 cups every 9 days

< 1ft from a window

Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.
