Hyacinths do not do as well as other out-door hardy bulbs, becoming less vigorous each year. They do a little better if the bulbs are lifted and dried in the Summer and replaced in the Fall.
If you plant—
Bulbs in the Grass
One caution is necessary: after they are through blooming, wait until the green leaves turn yellow before cutting the grass. If the leaves are cut before they turn, the bulbs will die.
Nowhere else do such flowers look so beautiful as in the grass.
To plant small bulbs, such as crocus, dig holes in the turf with an apple-corer, or with a “dibble,” which is a pointed stick. Throw in a tiny bit of bone meal and some sand. After placing the bulb, being certain to put the root end down, and the pointed top up, cover with sand and pack the turf firmly back in place.
A better way is to lift the turf with a spade. Dig, to loosen up the soil; add a little bone meal; plant bulbs, replace sod.
To place them in an artistic position, throw down a handful and plant where they fall.