Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to plant clematis [title] Pick a clematis cultivar. [step] Clematis flowers come in an enormous range of shapes and colors, from pink blooms that span 6 inches across to drooping blue bells to starry white flowers. They've grown in popularity in recent years, so many nurseries offer dozens of varieties to choose from.

Ending1: You'll also be able to buy several varieties, depending on the variety of plant in the mix. [substeps] Some species' leaves grow fastest in an hardiness zone, while others grow very slowly in a temperate climate. Ending2: When you decide which cultivar to buy, take the color, shape, potential side and sun requirements into account. Clematis often take several years to flower, so look for a potted plant that's already a year or two old. Ending3: Visit one to get a sense of the species, then use your eyes to find the right size variety for your specific growing conditions. [substeps] Air balleful varieties are generally two to six inches in diameter, while spring-flowering varieties can grow tall over 8 inches. Ending4: Consult an experienced gardener who can study them thoroughly before purchasing them. [substeps] Determine which plant hardiness zone you'll be growing clematis in.

Answer format: ending1/ending2/ending3/ending4