The main thing is to avoid abrupt changes in temperature. It is essential to make the transfer little by little, taking the plants outside during the day and protecting them under shelter by night for a time.

Watch the changes the plants undergo because not all react in the same way. It all depends on the temperature variations they can withstand, their size, age, and stage of development and where they were situated indoors.

It is important to set the plants in a place protected from direct sunlight and where there are no draughts. It is also a good idea to have the light filtered by a climbing plant set on an arbor. This creates a better atmosphere than a canopy.

Other points to keep in mind when taking indoor plants outdoors:
� Give them enough space so they can grow without being bothered.
� When the atmosphere is hot in summer, increase the humidity of the air, spraying the plants with water or placing the flower pots on plates with pebbles and water. This is the case for ferns.
� Even if a plant is said to be able to withstand the sun, never place it in direct sunlight.
� Water regularly, but avoid doing so at night until the weather gets warmer. Don't forget to empty water that has accumulated in the bottom of pots, if you have not done so when you took the plants outside.
� Place plants that are most delicate and sensitive to changes among more robust ones to create a healthy microclimate for them.
� Watch for pests: plant lice, twospotted spider mites, greenhouse whiteflies and woodlice. The plants are more vulnerable to them than when they were indoors.
� Most indoor plants grow well outside if the conditions are favorable. To keep this going, treat them with the right fertilizer.

Leaves give us an idea of how much light a plant needs. These are some guidelines:
- Plants with variegated leaves (dieffenbachia, aglaonema, syngonium) should never be placed in the sun but they do need more light than plants with deep green leaves.
- Plants with large, soft leaves (philodendron, gloxinia, monstera, aralia) need brightness or semi-shade but no sun.
- Plants with tough leaves (ixora, hoya) need a lot of light but it is best they get sun first thing in the morning. Remember: when in doubt, place them in the shade.