Lobularia hybrid Snow Princess

Snow Princess is a Lobularia hybrid from Proven Winners. It is an extremely vigorous plant that has a growing habit similar to a vegetative petunia. It does not behave like a seed Alyssum. Consumers love the plant because of its flowing mass of white flowers.

Finish time: Four to five weeks for a 4- to 5-inch pot with one plug; 5-6 weeks for a 6-inch or 1-gallon pot with one plug; 6-8 weeks for an 8-inch pot with two or three plugs; and 8-10 weeks for a 10- or 12-inch pot with three plugs.

Temperature: Rooting out (65-72°F); Growing on (55-62°F); and Holding (50-60°F).

Light: Provide high light levels (6,000-10,000 foot candles). Lower light levels will promote stretch.

Irrigation: Snow Princess is a vigorous plant and must be frequently irrigated if no plant growth regulators are applied. Water stress leads to lower leaf yellowing and loss. Use PGRs as an irrigation management tool.

Fertility: Provide a balanced N-P-K fertilizers with all the macro- and micronutrients.
Target pH Range: 6.0 to 6.5
Rate: 150 to 200 ppm N

Pinching: Pinch newly arrived plugs if not already done. Pinching a second time will help control growth and encourage a round shape. Pinching is a must if plant growth regulators are not used.
Pinching will delay flowering by ~7 days.

Growth control: A negative DIF can be used.
Do not use water stress to manage growth.
Preplant liner soaks: 4 to 8 ppm Piccolo (paclobutrazol)
or 0.5 to 1 ppm Concise (uniconazole).
Foliar sprays: 75 to 100 ppm Piccolo or 20 to 25 ppm Concise.
Substrate drenches: 2 to 4 ppm Piccolo or 1 to 2 ppm Concise.
Rates based on North Carolina growing conditions

Pests: Sporadic caterpillar feeding (diamondback moth) and leafminers.