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How to Grow Aster
Well, if you want to grown Aster,
then asters like moist but well drained soil and plenty of sun as well. Most
from big clumps that are best divided every few years by replanting shoots from
the outside of the clumps. Tall
varieties must often be staked, but the stems can be pinched early in the
season to make the plants more erect as well as more compact and free flowering.
This may, however, delay in bloom. With some of the dwarf varieties you must
remove some plants each year to prevent them from taking over. Moreover, mulch
varieties those are not winter hardy in your zone with evergreen boughs. Remove
self-sown seedlings, for they will not come up the same color as the parent
plant if they are hybrids and not an original species. Source: Charismatic Planet