Watering schedule
How often to water Downy Rock Jasmine (Androsace pubescens) — the schedule
Also called Downy rock jasmine, Pubescent androsace.
More about downy rock jasmine
About Downy Rock Jasmine
Androsace pubescens · also called Downy rock jasmine, Pubescent androsace · flowering
Androsace pubescens is a tight cushion-forming alpine perennial native to rocky limestone ledges and screes in the Pyrenees and western Alps, typically at elevations above 2,000 m. It produces compact silvery-haired rosettes smothered in small white flowers with a yellow or pink eye in late spring, and demands exceptional drainage alongside cool conditions to perform well. Being one of the more demanding Androsace species, it is best grown in an alpine house or deep tufa crevice to exclude winter wet. Androsace is not listed by the ASPCA; treat as mildly toxic and keep out of reach of pets as a precaution.
Ideal humidity: Very low
Watch for — Red spider mite (in alpine house conditions): Dry, warm conditions inside a glass alpine house can encourage red spider mite; increase ventilation and mist surrounding surfaces (not the plant) to raise local humidity, or use a predatory mite such as Phytoseiulus persimilis.
The watering schedule, season by season
Downy Rock Jasmine flowers best on steady, even moisture — let it dry out hard and it drops buds; keep it soggy and the roots rot before it can bloom. The base rhythm for downy rock jasmine is very sparingly; nearly dry between waterings, but the real interval moves with the season, the light and the pot — so treat the figures below as a starting point and always confirm with the plant itself.
- Spring & summer (active growth): Spring and summer (active growth and bloom): keep evenly moist, watering when the top 2-3 cm is dry — typically when the soil tells you it is time.
- Autumn (slowing down): Autumn: ease back as flowering finishes and growth slows; let it dry a little more between waterings.
- Winter (rest / dormancy): Winter / rest: water sparingly while it rests, then resume as new growth and buds appear.
Water only at the base and keep foliage dry at all times; in winter under UK conditions, move to an alpine house or provide overhead protection to prevent fatal waterlogging.
Want this turned into a live reminder that adjusts to your home and the weather? The Growli watering calculator takes your pot size, light and season and returns a starting interval for downy rock jasmine in seconds.
How to tell downy rock jasmine needs water
A calendar is the worst way to water downy rock jasmine. Check the plant and the soil instead — for this species, look for these signals in order:
- The top 2-3 cm of soil is dry to the touch.
- Leaves or flower stems lose turgor and start to droop.
- Buds stall or the pot feels light.
The most reliable single check is the first one on that list. When two signals agree, water; when they disagree, wait a day and look again — under-watering downy rock jasmine for a day is almost always safer than over-watering it.
Overwatering vs underwatering downy rock jasmine
The two failure modes can look alike at a glance, so check the soil weight and wetness before you decide. For downy rock jasmine specifically:
Signs you are overwatering
- Yellowing leaves, bud drop, and a heavy, constantly wet pot.
- Mushy stems or crown rot at soil level.
- Fungus gnats and a sour soil smell.
Signs you are underwatering
- Wilting, bud and flower drop, and crispy leaf edges.
- A faded, stressed look and a rootball that has pulled from the pot sides.
Erratic watering — bone dry then flooded — makes downy rock jasmine drop its buds and flowers. Consistency through the budding period is what protects the display.
Water quality notes
Tap water is generally fine for downy rock jasmine unless your water is very hard; rainwater is a safe default if leaf tips brown.
Seasonal and environmental adjusters
Every figure above shifts with the conditions in your home. For downy rock jasmine, the levers that matter most are:
- A blooming plant in good light drinks faster than a resting one — shorten the interval during flowering.
- Brighter, warmer spots dry the pot faster; check before watering rather than fixing a date.
- Empty the saucer after every water so the roots are never sitting in run-off.
Pot choice is part of this too — work out the right size with the pot size calculator, since a pot that is too big stays wet long enough to rot the roots of downy rock jasmine.
Downy Rock Jasmine watering — frequently asked questions
How often should I water downy rock jasmine?
Water downy rock jasmine very sparingly; nearly dry between waterings. Spring and summer (active growth and bloom): keep evenly moist, watering when the top 2-3 cm is dry — typically when the soil tells you it is time. Winter / rest: water sparingly while it rests, then resume as new growth and buds appear.
How do I know when downy rock jasmine needs water?
The top 2-3 cm of soil is dry to the touch. Leaves or flower stems lose turgor and start to droop. Buds stall or the pot feels light. The single most reliable test for downy rock jasmine is the first signal on that list — checking the soil or the plant directly always beats watering by the calendar.
What does an overwatered downy rock jasmine look like?
Yellowing leaves, bud drop, and a heavy, constantly wet pot. Mushy stems or crown rot at soil level. Fungus gnats and a sour soil smell. Erratic watering — bone dry then flooded — makes downy rock jasmine drop its buds and flowers. Consistency through the budding period is what protects the display.
What are the signs of an underwatered downy rock jasmine?
Wilting, bud and flower drop, and crispy leaf edges. A faded, stressed look and a rootball that has pulled from the pot sides.
Can I use tap water on downy rock jasmine?
Tap water is generally fine for downy rock jasmine unless your water is very hard; rainwater is a safe default if leaf tips brown.
Keep reading
- Watering downy rock jasmine in the UK — hard vs soft tap water
- Downy Rock Jasmine care — the full brief (light, soil, humidity, problems, pet safety)
- Watering calculator — get a starting interval for your exact pot and light
- Pot size calculator — the right pot keeps watering forgiving
- Why is my plant wilting? Wet vs dry diagnosis
- Overwatered plant — signs and how to recover it
- Underwatered plant — signs and how to rehydrate it
- How often to water wild rose
- How often to water japanese rose
- How often to water sweetbriar rose
- All 10153 watering schedules in the Growli library