Double layers netting is required to support long stem growth. Plant 6 - 8 plants per square meter into cool soil, as soon as you know your last frost has come and gone. Water them into the loose soil. After 5 - 7 weeks, you need to pinch for best results. Pinching low will result in heavier and fewer stems, while pinching higher on the stem increases production. Gypsophila is prone to the following pests, so keep a close eye on its growth: leaf miners, thrips, caterpillars, spider mites, powdery mildew, downy mildew, alternaria rhizoctonia, and pitium.