This section is from the book "The Gardener's Monthly And Horticulturist V22", by Thomas Meehan. See also: Four-Season Harvest: Organic Vegetables from Your Home Garden All Year Long.
Plants that have been in windows or greenhouses must now be set out to get their summer airing. Usually they are simply set out in the pots in which they have been growing. If there are a large number they are set on the ground in long narrow beds, and often plunged in sand or coal ashes so as to keep the roots moist and cool and save watering. These summer bedded pot plants are often arranged like little flower gardens, in circles, squares and other forms, and add very much to garden interest. It is usual to put these plants out under some shade, either that of a large tree, an arbor, or under slats made on purpose for them. Very often however these are too shady for some things. Azaleas, for instance do not flower well if kept all summer in too much shade. It is best, if possible to divide the plants into three sets, - those which love shade such as most Ferns; those which do well in partial shade, as Camellias; and those which prefer the full sun as Palms and many tropical plants.
It is also well to make the beds of pot plants near where water is easily obtained, so as to have an easy supply for watering and syringing. This last is an important point, as the red spider often makes fearful work on a warm summer's day. Orchids in baskets for the most part do very well hung out of doors during the summer: but these should be suspended from the branches of trees, or from some half shaded spot.
Though most plants will be kept in pots, some that will lift well with small balls in autumn may be planted in the open ground. This is particularly good advice when the plants look a little sickly from over-watering or other cause. They may be pruned a little when served in this way.
Many things get too large for windows, and conservatories before the season's growth is over, - this should be forseen at this season of the year, and such possible offenders severely pruned.