Houseplant care in September
September is the last month of growth: from October the cards switch to the winter rest, with less water and no feeding.
Which houseplants to feed in September?
Feedings by each card’s schedule, counted from the start of growth on 1 March:
| Plant | Feeding | Day of the month |
|---|---|---|
| Aglaonema | balanced (NPK) | 11 |
| Air plant | balanced (NPK) | 11 |
| Alocasia | balanced (NPK) | 11 |
| Amaryllis | balanced (NPK) | 11 |
| Anthurium | balanced (NPK) | 11 |
| Boston fern | balanced (NPK) | 11 |
| Calathea | balanced (NPK) | 11 |
| Chinese Hibiscus | balanced (NPK) | 1 |
| Chinese money plant | balanced (NPK) | 11 |
| Clivia | balanced (NPK) | 11 |
| Croton | balanced (NPK) | 11 |
| Cyclamen | phosphorus and potassium | 11 |
| Dieffenbachia | balanced (NPK) | 11 |
| Dracaena | balanced (NPK) | 11 |
| Easter cactus | phosphorus and potassium | 11 |
| Grape ivy | balanced (NPK) | 11 |
| Lady palm | balanced (NPK) | 11 |
| Lucky bamboo | balanced (NPK) | 11 |
| Mistletoe cactus | phosphorus and potassium | 11 |
| Money tree | balanced (NPK) | 11 |
| Moth Orchid | balanced (NPK) | 13 |
| Parlour palm | balanced (NPK) | 11 |
| Peperomia | balanced (NPK) | 11 |
| Philodendron | balanced (NPK) | 11 |
| Pothos | balanced (NPK) | 11 |
| Pygmy date palm | balanced (NPK) | 11 |
| Satin pothos | balanced (NPK) | 11 |
| Schefflera | balanced (NPK) | 11 |
| Snake Plant | balanced (NPK) | 11 |
| Ti plant | balanced (NPK) | 11 |
| Tradescantia | balanced (NPK) | 11 |
No feeding this month by their cards: Aechmea, African violet, Aloe vera, Areca palm, Asparagus fern, Aspidistra, Bird of paradise, Bird's nest fern, Bunny ears cactus, Burro's tail, Calla lily, Cape primrose, Chin cactus, China doll, Christmas Cactus, Coffee plant, Coleus, Creeping fig, Crown of thorns, Ctenanthe, Echeveria, English ivy, Fiddle-Leaf Fig, Fittonia, Flame violet, Gardenia, Gasteria, Geranium, Gloxinia, Guzmania, Haworthia, Hoya, Jade Plant, Kalanchoe, Kentia palm, Lithops, Madagascar Jasmine, Maidenhair fern, Mammillaria, Maranta, Ming aralia, Mini monstera, Monstera, Peace Lily, Pink Jasmine, Poinsettia, Polka dot plant, Ponytail palm, Purple shamrock, Rex begonia, Rubber Plant, Sago palm, Spider Plant, Staghorn fern, String of hearts, String of pearls, Stromanthe, Syngonium, Tropical pitcher plant, Venus flytrap, Vriesea, Weeping Fig, Yucca, Zebra plant, ZZ Plant.
How often to water houseplants in September?
By the growth interval of each card:
- every 3 days: Maidenhair fern, Venus flytrap
- every 4 days: Bird of paradise, Chinese Hibiscus, Coleus, Fittonia, Gardenia, Gloxinia, Madagascar Jasmine, Tropical pitcher plant
- every 5 days: Asparagus fern, Boston fern, Calathea, Calla lily, Coffee plant, Creeping fig, Ctenanthe, Flame violet, Pink Jasmine, Poinsettia, Polka dot plant, Rex begonia, Stromanthe, Zebra plant
- every 6 days: African violet, Alocasia, Anthurium, Croton, Maranta, Peace Lily
- every 7 days: Aechmea, Air plant, Amaryllis, Areca palm, Bird's nest fern, Cape primrose, China doll, Chinese money plant, Cyclamen, Dieffenbachia, Easter cactus, English ivy, Geranium, Grape ivy, Guzmania, Hoya, Kentia palm, Lady palm, Lucky bamboo, Ming aralia, Mini monstera, Mistletoe cactus, Monstera, Moth Orchid, Philodendron, Pothos, Purple shamrock, Pygmy date palm, Rubber Plant, Spider Plant, Staghorn fern, Syngonium, Ti plant, Tradescantia, Vriesea, Weeping Fig
- every 8 days: Money tree, Satin pothos, Schefflera
- every 10 days: Aglaonema, Aspidistra, Christmas Cactus, Clivia, Dracaena, Fiddle-Leaf Fig, Parlour palm, Peperomia, Sago palm, String of pearls, Yucca
- every 14 days: Aloe vera, Bunny ears cactus, Burro's tail, Chin cactus, Crown of thorns, Echeveria, Gasteria, Haworthia, Jade Plant, Kalanchoe, Mammillaria, Ponytail palm, String of hearts, ZZ Plant
- every 21 days: Lithops, Snake Plant
How warm should houseplants be in September?
The lowest temperature each card allows while the plant grows:
- 5 °C: Aspidistra
- 10 °C: Aloe vera, Cyclamen, Spider Plant, String of pearls, Yucca
- 12 °C: Bird of paradise
- 15 °C: Gardenia, Snake Plant
- 16 °C: African violet, Alocasia, Bird's nest fern, Boston fern, Calathea, Ctenanthe, Dieffenbachia, Guzmania, Haworthia, Hoya, Kalanchoe, Maidenhair fern, Monstera, Moth Orchid, Poinsettia, Rex begonia, Rubber Plant, Schefflera, Stromanthe, Vriesea
- 18 °C: Aechmea, Anthurium, Christmas Cactus, Croton, Dracaena, Money tree, Peace Lily, Pothos, Syngonium, Tradescantia, Weeping Fig, ZZ Plant
- 20 °C: Aglaonema, Areca palm, Madagascar Jasmine, Parlour palm
- 21 °C: Mammillaria
In the southern hemisphere the half-years swap: in September, care for houseplants as in March in the north. Houseplant care in March
Other months
Every figure on this page comes from the plant cards; each plant’s page lists the sources.