Guide

Push a Christmas cactus into optimal conditions and it can double in size faster than you’d think, but the real trick is getting those size gains without wrecking next winter’s blooms.

How big do salvias grow? Sizes range from 8-inch compact bedding varieties to towering 10-foot giants. See the full chart by species and cultivar.

Propagate Echeveria succulents using leaf cuttings, offsets, or beheading—learn the exact steps, callousing times, and common mistakes to avoid for healthy new plants.

Plant hollyhocks by sowing seeds directly one week before the last frost, pressing them ¼ inch deep into full sun, and spacing plants 18–24 inches apart to avoid rust.

A Chicago Hardy fig tree reaches 10–15 feet tall in zone 7, up to 30 feet in warmer zones, but stays under 4 feet where winter kills the top growth.

Most rose trees reach 4 to 7 feet in total height with a 3-foot spread, depending on the variety and trunk size — here is exactly how long that takes and how to space them.

Learn the correct Dumb Cane water regimen for healthy Dieffenbachia — when to water, how to test soil dryness, and what to avoid for lush growth.

Discover why Hidcote lavender blooms from June through August, how to get a second fall flush, and the pruning mistake that stops flowers completely.

Cherry tomato plant sizes range from under 1 foot for dwarf varieties to over 10 feet for vigorous indeterminate vines, depending on variety, support, and container choice.

Rose of Sharon shrubs mature from 3 to 16 feet tall depending on variety—learn the exact spacing, pruning timing, and cultivar dimensions that fit your yard.