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Ornamentals

Geranium

Pelargonium × hortorum

Geranium
Photo: Peter Warren · CC0 · Wikimedia Commons

The flower of balconies and patios, blooming from spring to autumn.

Light
Full sun (6 h or more)
Height
0.3–0.5 m
Watering
Low: every 7–15 days, drought-tolerant
Soil
loose and well-drained
Edible?
No: ornamental
How to plant
Plant the young plant with its crown at soil level, 30 cm apart.
Care
Moderate watering without wetting the leaves. Against the geranium bronze caterpillar, use Bt in summer.

Calendar by climate

Warm coast
Mild Mediterranean
Southern interior
Continental interior
Cold interior and uplands
Atlantic
Canary Islands (subtropical)
SowPlantHarvestPruneFeedTreat

Dates are for growing outdoors. You can start seedlings earlier indoors or in a greenhouse, but plant them out only once the frosts are over.

Feeding and doses

Mild Mediterranean

  • High-potash liquid feedApr, May, Jun, Jul, Aug≈20 ml / 10 L

Pest prevention and doses

Mild Mediterranean

  • CaterpillarsBacillus thuringiensis · Jun, Jul, Aug1 g / L

Approximate doses: always follow the product label. Spray in the evening, never in full sun or on flowers visited by bees. No sulphur above 30 °C.

How easy to grow by climate

  • Warm coastEasy
  • Mild MediterraneanEasy
  • Southern interiorNeeds regular careExtreme summer heat
  • Continental interiorNeeds regular careFrost and a short season
  • Cold interior and uplandsDifficultHard, long frosts
  • AtlanticNeeds regular careRain and humidity: fungal disease
  • Canary Islands (subtropical)Easy

Plants in the same category

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What you get

How to do it

  1. Tap Share . In Safari it's at the bottom (on iOS 26, tap “•••” first); in Chrome, in the address bar.
  2. Scroll and choose “Add to Home Screen” (if it isn't there, tap “View More”).
  3. Tap “Add”. If you see “Open as Web App”, leave it on.
  4. Done: open Hortario from the new icon.

On iPhone the icon app keeps its own data: you may need to pick your area and plants again.