Watering and care calendar
What changes for potted plants in summer, the monsoon and winter, written as general guidance. Seasons arrive at different times across India, so go by the weather on your own balcony rather than the date.
The all-season watering test
Rather than watering on a timetable, check the pot. NC State Extension’s test is simple: push a finger 2 to 3 inches (about 5 to 7.5 cm) into the potting mix, and water if it feels dry. When you water, keep going until water starts to run out of the drainage holes, then empty the saucer. Plants that like to dry out between drinks, such as aloe, jade plant, ZZ plant and snake plant, need the mix to dry further; their care pages say how far.
Two things raise water needs fast: heat and pot size. NC State lists hot, windy weather, small or dark containers and full sun as reasons pots dry quicker, and notes that larger containers dry more slowly.
Source: NC State Extension, checked 26 October 2026.
Summer: hot and often dry
- Check pots daily. Oregon State Extension notes container soil dries quickly, especially in full sun, and daily watering is often needed.
- Keep dark pots out of full sun. NC State says dark containers absorb more heat, and that larger containers dry out more slowly, so small pots need the most attention.
- Shade the leafy greens. N.C. Cooperative Extension says leafy greens tolerate and benefit from more shade in hot months. Lettuce, coriander and spinach tend to bolt (run to flower) in heat, according to NC State.
- Water fruiting crops evenly. Tomatoes and chillies need steady moisture; NC State and N.C. Cooperative Extension link uneven watering with blossom-end rot.
- Watch for spider mites on plants in dry soil or dry air. TNAU notes mites on jasmine during drought and hot weather, and NC State links them with dry soil on turmeric.
- Spray with care. If you use insecticidal soap or oil, UC IPM advises spraying only plants that are not drought-stressed, and when temperatures are under 90 °F (about 32 °C).
Source: Oregon State University Extension Service; NC State Extension; N.C. Cooperative Extension, Onslow County Center; NC State Extension; NC State Extension; TNAU Agritech Portal, Tamil Nadu Agricultural University; NC State Extension; University of California Statewide IPM Program, checked 26 October 2026.
Monsoon: wet, humid and still
- Let rain do the watering, then check. Use the finger test before watering; a pot that has had rain may need nothing for days.
- Keep drainage holes clear and pots off the floor. Oregon State suggests raising containers on bricks or slats so they never sit in water. NC State says drainage holes are necessary in every container to stop roots standing in water and rotting.
- Empty saucers and anything holding water. NC State links standing saucer water with root rot, salt build-up and mosquito breeding. WHO advises removing artificial habitats that hold water and emptying containers weekly to prevent mosquitoes that spread dengue. Change the water in lucky bamboo vases weekly, as NC State suggests.
- Give leaves air. NC State links still air and wet leaves with leaf spots and powdery mildew on several plants in this guide, including zinnia, kalanchoe, anthurium and rosemary. Space pots apart.
- Read the fungus gnats. Tiny black flies around pots usually mean the mix is staying too wet; Illinois Extension advises letting it dry between waterings.
- Turmeric and ginger are in their growing season. NC State notes turmeric goes dormant after the monsoon in India.
Source: Oregon State University Extension Service; NC State Extension; World Health Organization; NC State Extension; NC State Extension; NC State Extension; NC State Extension; NC State Extension; University of Illinois Extension; NC State Extension, checked 26 October 2026.
Winter: cooler and slower
- Water less. Growth slows, and many care pages say to cut back: NC State suggests watering snake plant only every one to two months in winter, ZZ plant about monthly, and croton sparingly.
- Pause most feeding. NC State advises no fertiliser for parlour palm in winter and feeding money plant every other month except winter.
- Know each plant’s cold limit. Choose your winter in the picker to see which plants can stay out and which need moving in. Some limits are high. NC State says to bring ZZ plant indoors below about 15.5 °C, to keep rubber plant above about 12.8 °C, to bring desert rose in at about 12.8 °C and croton at about 10 °C, that ixora does not tolerate temperatures below 10 °C, and that potted ginger should come in before 10 °C. For tender plants in containers, NC State’s general advice is to bring them inside once nights drop to about 12.8 °C (55 °F), after a week on a porch or other sheltered spot to adjust.
- Grow the cool-season crops. Coriander, spinach, lettuce, radish and spring onion are cool-season crops; NC State notes spinach tolerates frost down to about −6.7 °C.
- Harden off seedlings. NC State suggests at least two weeks of gradually increasing outdoor time before planting out, and not putting tender seedlings outside on windy days or below 45 °F (about 7 °C).
Source: NC State Extension; NC State Extension; NC State Extension; NC State Extension; NC State Extension; NC State Extension; NC State Extension; NC State Extension; NC State Extension; NC State Extension; NC State Extension; NC State Extension; NC State Extension, checked 26 October 2026.
Between seasons
As the monsoon ends and nights cool: chrysanthemums flower in autumn, and turmeric is ready to lift when its leaves wilt and dry (NC State). TNAU’s guidance for Tamil Nadu prunes mogra bushes to about 50 cm in the last week of November and lists November to December as one tomato sowing season; check what local growers do where you live.
As days warm again: sow or plant warm-season crops once nights are reliably warm. This is also a good time to repot: NC State suggests spring repotting for anthurium and monstera, and February or March for peace lily.
Source: NC State Extension; NC State Extension; TNAU Agritech Portal, Tamil Nadu Agricultural University; TNAU Agritech Portal, Tamil Nadu Agricultural University; NC State Extension; NC State Extension; NC State Extension, checked 26 October 2026.
Cool-season and warm-season crops
NC State’s vegetable handbook sorts crops by temperature: cool-season vegetables thrive when temperatures fall below about 21 °C (70 °F), and warm-season vegetables are frost-sensitive and grow well above it. Here is how the edible plants in this guide line up.
Cool-season (grow in your cooler months)
Warm-season (grow while it is warm)
Methi sits in between: NC State gives it an ideal range of about 7 to 27 °C. Herbs kept year to year, such as mint, tulsi, lemongrass and rosemary, have their own notes on their pages.
Source: NC State Extension; NC State Extension, checked 26 October 2026.
This calendar is general guidance, not a schedule for your exact location. Heat waves, early or late monsoons and a balcony’s own exposure all change what plants need. General gardening information, not professional advice. Plant toxicity details are a starting point, not veterinary or medical advice: if a pet or child may have eaten a plant, contact a veterinarian or doctor promptly.
Main sources for this calendar
- Extension Gardener Handbook, Chapter 18: Plants Grown in Containers, NC State Extension. Checked 26 October 2026.
- Container gardening: Grow vegetables even without yard space (March 2025), Oregon State University Extension Service. Checked 26 October 2026.
- Easy Container Vegetables And How to Grow Them (9 March 2025), N.C. Cooperative Extension, Onslow County Center. Checked 26 October 2026.
- Dengue and severe dengue (fact sheet, 21 August 2025), World Health Organization. Checked 26 October 2026.
- Houseplant pests and how to manage them (K. Johnson, 14 January 2022), University of Illinois Extension. Checked 26 October 2026.
- Pest Notes: Whiteflies (UC ANR Publication 7401), University of California Statewide IPM Program. Checked 26 October 2026.
- Extension Gardener Handbook, Chapter 16: Vegetable Gardening, NC State Extension. Checked 26 October 2026.
- Extension Gardener Handbook, Chapter 13: Propagation, NC State Extension. Checked 26 October 2026.
- Malligai (Jasminum sambac), TNAU Agritech Portal, Tamil Nadu Agricultural University. Checked 26 October 2026.
- Tomato: season and field preparation, TNAU Agritech Portal, Tamil Nadu Agricultural University. Checked 26 October 2026.