Thunbergia King's Mantle Blue

Thunbergia ‘King’s Mantle Blue’ is an evergreen, tropical shrub or vining plant prized for its showy, trumpet-shaped, deep blue to purple flowers with a bright yellow throat. It has lush, dark green foliage and blooms profusely in warm climates. This low-maintenance plant is a favorite for adding color to landscapes, borders, and trellises.

Native Range:

• Native to Eastern Africa and parts of India.

USDA Grow Zones:

• Zones 9-11: Perennial (blooms year-round in frost-free areas).

• Zone 8 and below: Grow as an annual or bring indoors during winter.

Mature Size:

• Height: 3 to 6 feet tall (as a shrub) or up to 8 feet when grown as a vine.

• Width: 3 to 5 feet wide.

Sunlight Requirements:

• Full Sun to Partial Shade: Prefers 4-6 hours of sunlight daily.

• Tolerates light shade but blooms best in bright conditions.

• Lone’s the heat but can use protection from the western sun by providing afternoon shade.

Soil Preferences:

• Type: Well-draining, fertile soil.

• pH: Slightly acidic to neutral (6.0-7.5).

• Improve with compost or organic matter for better flowering.

Watering Needs:

• Water regularly to keep the soil moist but not soggy.

• Reduce watering during cooler months.

Temperature & Humidity:

• Ideal Temperature: 65-85°F (18-29°C).

• Frost-sensitive: Protect from temperatures below 40°F (4°C).

• Prefers moderate to high humidity but tolerates dry spells once established.

Maintenance:

• Pruning: Lightly prune after flowering to shape and encourage new blooms.

• Fertilizing: Apply a balanced, slow-release fertilizer every 4-6 weeks during the growing season.

Blooming Period:

• Blooms spring through fall in most climates. In warm regions, it can bloom year-round.

Uses:

• Ornamental: Ideal for borders, trellises, hanging baskets, and hedges.

• Pollinator-Friendly: Attracts butterflies and bees.

• Container Gardening: Thrives in large pots with proper drainage.

---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.