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Hot® Waterblue Lobelia - New For 2024!

Lobelia 'Hot Waterblue'

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Hot Waterblue Lobelia (Lobelia 'Hot Waterblue') at The Flower Bin

Hot® Waterblue Lobelia flowers

Hot® Waterblue Lobelia flowers

(Photo courtesy of NetPS Plant Finder)

Hot Waterblue Lobelia (Lobelia 'Hot Waterblue') at The Flower Bin

Hot® Waterblue Lobelia in bloom

Hot® Waterblue Lobelia in bloom

(Photo courtesy of NetPS Plant Finder)

Height:  12 inches

Spacing:  6 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  (annual)

Group/Class:  Hot Series

Brand:  Westhoff

Description:

This variety is covered with long lasting lavender-blue flowers with white centers; excellent performance in summer heat; looks wonderful in mass plantings along borders or in containers

Ornamental Features

Hot® Waterblue Lobelia is covered in stunning lavender flowers with blue overtones and white centers at the ends of the stems from mid spring to early fall. The flowers are excellent for cutting. Its pointy leaves remain green in color throughout the season.

Landscape Attributes

Hot® Waterblue Lobelia is an herbaceous annual with a mounded form. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.

This is a relatively low maintenance plant, and should be cut back in late fall in preparation for winter. It is a good choice for attracting butterflies and hummingbirds to your yard. It has no significant negative characteristics.

Hot® Waterblue Lobelia is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Container Planting

Planting & Growing

Hot® Waterblue Lobelia will grow to be about 12 inches tall at maturity, with a spread of 8 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 6 inches apart. Although it's not a true annual, this fast-growing plant can be expected to behave as an annual in our climate if left outdoors over the winter, usually needing replacement the following year. As such, gardeners should take into consideration that it will perform differently than it would in its native habitat.

This plant does best in full sun to partial shade. It is quite adaptable, prefering to grow in average to wet conditions, and will even tolerate some standing water. It is not particular as to soil pH, but grows best in rich soils. It is somewhat tolerant of urban pollution. This particular variety is an interspecific hybrid, and parts of it are known to be toxic to humans and animals, so care should be exercised in planting it around children and pets. It can be propagated by cuttings; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Hot® Waterblue Lobelia is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the thriller plants stand out. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Garden  Container 
Applications
Flowers  Attracts Wildlife 
Ornamental Features
This guide is an online resource representing many of the varieties that we carry over the course of the season, and is intended for informational purposes only. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact the store directly for current availability. It does not include our entire selection of plants, so be sure to visit our store to see varieties that may not be represented on this list.