Treacle-Mustard
About Treacle-Mustard
Treacle-Mustard is a super rare houseplant 🌿 that is a fun challenge to grow and needs regular watering to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.
Treacle-Mustard likes soil that is good at retaining moisture. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.
Treacle-Mustard belongs to the Erysimum genus, and is native to Europe and Japan.
Taxonomy
Erysimum cheiranthoides
Erysimum
Brassicaceae
Brassicales
Also known as
treacle-mustard,, wormseed wallflower and wormseed mustard
How to care for Treacle-Mustard
How often to water your Treacle-Mustard
every 9
Treacle-Mustard 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
Finding light for Treacle-Mustard in your home
a window
Treacle-Mustard love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Treacle-Mustard does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Treacle-Mustard in your home 🏡.
How to fertilize Treacle-Mustard
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 Treacle-Mustard after it doubles in size or once a year—whichever comes first.
Care Summary for Treacle-Mustard
Treacle-Mustard
Greg recommends:
Water
0.5 cups every 9 days
Placement
< 1ft from a window
Nutrients
Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.