Plant Gypsophila paniculata 'Festival Star®' where you want a bright, airy cloud of small white flowers that looks at home in borders and is also excellent for cutting and drying. You will get the best flowering and strongest stems in full sun with sharply drained soil; avoid heavy, wet sites and amend as needed to improve drainage. This plant prefers neutral to alkaline conditions and tends to perform best when the crown is not kept constantly wet.
Once established, it can handle some dry spells, but regular watering during prolonged drought helps keep growth steady. Because baby's breath forms a deep, fleshy root system, try to site it carefully and avoid frequent digging or moving. After the main flush of bloom, you can shear or cut back spent stems to tidy the plant and encourage more flowers later in the season. In exposed spots, a sheltered location can help keep stems from splaying, but this compact selection is often neat without staking.
Flowers can attract butterflies, and the plant is often noted as deer resistant and tolerant of some salt exposure. In some regions, Gypsophila paniculata may behave aggressively or be listed as invasive or noxious, so check local guidance before planting, especially near natural areas.