Formosa firethorn
About Formosa firethorn
Formosa pyracantha is a medium evergreen shrub that grows up to 18' and is upright, stiff, and thorny. It blooms in late spring to early summer and has showy but extremely foetid flowers. The orange-red berries mature in fall and persist through winter. It has sharp thorns and requires pruning to look manucured. It is tolerant of partial shade, hot and dry conditions and pH between 5.5 and 7.5.
Taxonomy
Pyracantha koidzumii
Pyracantha
Rosaceae
Rosales
Also known as
Formosa firethorn and Taiwan firethorn
How to care for Formosa firethorn
How often to water your Formosa firethorn
every 9
Formosa firethorn 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 Formosa firethorn in your home
a window
Formosa firethorn love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Formosa firethorn does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Formosa firethorn in your home 🏡.
How to fertilize Formosa firethorn
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 Formosa firethorn after it doubles in size or once a year—whichever comes first.
Care Summary for Formosa firethorn
Formosa firethorn
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.