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What to plant in May in Las Palmas

In May in Las Palmas: 5 plants to sow, 21 to plant out and 51 to harvest, plus feeds and treatments with doses.

This month's climate

20.4°Mean · 17.3–23.6 °C
1mm · 0.3 rain days
272h · Sun

Source: AEMET climate normals, station Gran Canaria Aeropuerto (C649I), 1981–2010.

Climate alerts this month

  • Very dry month: 1 mm of rain. Irrigation is essential; mulch the soil.

Sow

5

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.

Plant

21

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.

Harvest

51

Prune

7

Feed

29

Preventive treatment

25
  • TomatoCopper (Bordeaux mixture) · against blight & downy mildew10–15 g / L
  • AubergineNeem oil · against spider mite3–5 ml / L
  • CourgetteWettable sulphur · against powdery mildew2–3 g / L
  • CucumberWettable sulphur · against powdery mildew2–3 g / L
  • PumpkinWettable sulphur · against powdery mildew2–3 g / L
  • MelonWettable sulphur · against powdery mildew2–3 g / L
  • WatermelonWettable sulphur · against powdery mildew2–3 g / L
  • SweetcornBacillus thuringiensis · against caterpillars1 g / L
  • OkraPotassium soap · against aphids10–20 ml / L
  • BeetrootCopper (Bordeaux mixture) · against peacock spot10–15 g / L
  • Dry beansCopper (Bordeaux mixture) · against rust10–15 g / L
  • GrapevineWettable sulphur · against powdery mildew2–3 g / L
  • GrapevineCopper (Bordeaux mixture) · against blight & downy mildew10–15 g / L
  • AvocadoNeem oil · against spider mite3–5 ml / L
  • Apple treeBacillus thuringiensis · against codling moth1 g / L
  • Pear treeBacillus thuringiensis · against codling moth1 g / L
  • Tree tomato (tamarillo)Potassium soap · against aphids10–20 ml / L
  • GooseberryWettable sulphur · against powdery mildew2–3 g / L
  • BlackcurrantWettable sulphur · against powdery mildew2–3 g / L
  • RoseWettable sulphur · against powdery mildew2–3 g / L
  • OleanderPotassium soap · against aphids10–20 ml / L
  • Chinese hibiscusNeem oil · against scale insects3–5 ml / L
  • GeraniumBacillus thuringiensis · against caterpillars1 g / L
  • Bay laurelPotassium soap · against scale insects10–20 ml / L
  • ChrysanthemumPotassium soap · against aphids10–20 ml / L
  • HollyhockWettable sulphur · against rust2–3 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.

Jobs this month

  • Stake tomatoes and beans
  • Mulch to keep moisture in

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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.