Lobularia Snow Princess

Botanical Name: Lobularia maritima
Common Names: Sweet Alyssum, Alyssum
USDA Zone: Annual in Zones 9–11 (can reseed)
Type: Annual to tender perennial (heat-tolerant hybrid varieties may last longer)
Bloom Time: Fall through spring; may slow or stop in extreme summer heat
Height & Spread: 4–8" tall x 12–18" wide
Flower Colors: White, pink, lavender, purple, or mix (depending on cultivar)

 Sunlight

• Full Sun to Partial Shade.

• In Zone 9, morning sun with afternoon shade is ideal — especially during the hottest months.

• If grown in containers, position them where they get 4–6 hours of direct sun daily.

Soil & Planting

• Soil Type: Well-draining soil rich in organic matter.

• pH Range: 6.0–7.5 (slightly acidic to neutral).

• Amendment Tips: Incorporate compost or aged manure before planting to improve drainage and fertility.

• Planting Time:

  • Fall (September–November): Best time for lush growth and extended bloom through winter and early spring.

  • Early Spring (February–March): Second planting window if overwintered plants decline.

Watering

• Keep soil consistently moist but not soggy.

• Water deeply 2–3 times per week, adjusting for rainfall.

• In containers, water more frequently since they dry out faster.

• Avoid overhead watering when possible — drip irrigation helps prevent fungal issues.

Fertilizing

• Feed with a balanced, slow-release fertilizer (such as 10-10-10) at planting.

• Supplement every 4–6 weeks with a liquid bloom booster (like 10-30-20) during active growth.

• Over-fertilizing with nitrogen can lead to more leaves than flowers.

Blooming & Maintenance

• Deadheading (removing spent blooms) encourages continuous flowering.

• Trim plants back by ⅓ mid-season if they become leggy or bloom slows — they’ll regrow quickly.

• Regularly remove any yellowing leaves to improve airflow and prevent mildew.

Heat & Cold Tolerance

• Cold: Tolerates light frost but not hard freezes. Protect with frost cloth below 30°F.

• Heat: Traditional alyssum struggles in Louisiana summers, but newer hybrids like Lobularia 'Snow Princess' or ‘Blushing Princess’ thrive in hot, humid conditions and bloom nearly year-round.

Growing in Containers

• Use well-draining potting mix with perlite or coarse sand.

• Ensure containers have drainage holes.

• Great for hanging baskets, borders, and pollinator pots.

• Pair beautifully with petunias, calibrachoas, lantanas, or dwarf salvias.

Pollinators & Companions

• Excellent pollinator plant — attracts bees, hoverflies, and butterflies.

• Works well as a companion plant for vegetables such as tomatoes and peppers by attracting beneficial insects.

• Combine with other Zone 9 favorites like Verbena, Marigold, and Blue Daze for vibrant seasonal color.

Common Problems

---SHIPPING NOTICE PLEASE READ BEFORE PURCHASING LIVE PLANTS!---

 We WILL NOT refund the purchase of or the shipping cost of live plants purchased with the intent to be shipped to states that do not authorize importing live plants or to states with restrictions! Purchases to these states will be held for 30 days for pick-up at our Slidell, Louisiana store and the shipping cost associated with these purchases will be held for the care of the plant while waiting to be picked up. All sales are final. If the plant(s) purchased are not picked up within 30 days from the date of order, these items will be returned to our sales inventory and you WILL NOT be refunded. Thank you for understanding these policies.

Due to regulations, certain states have restrictions on importing plants. Please review the list below to ensure you're not attempting to order any restricted plants in your area.

**Important Note:** We do not ship any plants outside the U.S.

State-Specific Restrictions - We ARE NOT responsible for any plant(s) that are not listed in these restrictions. Purchaser bears all responsibility for making sure the plant(s) they desire to purchase are not banned from being imported to the shipping state:

Arizona: Juglans spp.  

California: Castanea spp., Juglans spp., Pinus spp., Quercus spp.  

Colorado: Some counties restrict Prunus spp. Please verify your local county regulations.  

Florida: Castanea spp., Cornus spp., Quercus spp., Cornus mas 

Georgia: Vaccinium spp.

Hawaii: Pinus spp. 

Idaho: Humulus lupulus, Mentha spp., Vitis spp.

Indiana: Fragraria spp., Rosa spp. 

Kansas: Juglans spp.

Michigan: Abies spp., Vaccinium spp.

Montana: Pinus spp.

Nevada: Allium spp.

, Mentha spp. 

New Jersey: Rosa spp.  

New York: Vitis spp.  

Oregon: Allium spp., Castanea spp., Corylus spp., Humulus lupulus, Quercus spp., Sambucus nigra, Ulmus spp., Vaccinium spp., Vitis spp.

Texas: Juglans spp. 

Washington: Allium spp., Castanea spp., Corylus spp., Humulus lupulus, Vaccinium spp., Vitis spp.  

Wisconsin: Abies spp., Pinus spp., Picea spp., Mentha spp. 

Additionally, we cannot ship plants in soil medium to the following states: AK, AL, AR, AZ, CA, HI, ID, KS, MS, MT, ND, NM, NV, OK, OR, SD, TX, UT, WA.