Like any other garden plants, landscape flowers, bulbs, seasonal color and vines respond beautifully to good growing conditions and reasonable amounts of care. But because of their wide variety and widely varying environmental preferences, it would be misleading to set down concrete cultural rules. Culcure varies not only from areas and temperature conditions but even within micro-climates.
Consider the many kinds of climate in this country: tropical Florida, subtropical Gulf Coast, arid desert areas in California and southern Arizona. “Severe” means one thing in Maine, something else in Wyoming or on the Pacific Northwest coast. North Carolina is “mild,” and so is Long Island. In any one state there may be a dozen different combinations of winter cold, summer heat, blistering and freezing winds, rainfall and drought, fertile and infertile soil.
This much we know – that every plant has its own set of circumstances in which it will thrive, and that the landscaper and gardener most likely to succeed either grows plants that naturally like the climate and other growing conditions he has to offer, or adapts his conditions to the plants’ liking.
For this gardener, there is a wide, wide world of fascinating varieties to choose from. By his willingness to make intelligent adaptations like applying lime to neutralize acid soil, or providing winter protection, he broadens his horticultural horizons with a choice of delectable vines.
And so any cultural information is of a general nature, not meant to be followed literally. Likewise, the notes on hardiness and culture for specific varieties like hardy asters, you may find described are not specific for every garden. Soil may vary considerably from one end of a 50 100 foot lot to the other; the sun may be hotter on the south side of your house than your neighbor’s; two plants of the same variety and age, purchased at the same time, may even differ in vigor.
That is one of the fascinations of growing plants. We can all experience something different in our growing space.