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Penstemon, Rock Candy Blue

Penstemon barbatus 'Rock Candy Blue'

$19.98

Penstemon barbatus ‘Rock Candy Blue’

Out of stock

Description

Tidy, compact clump of green foliage topped by upright spikes full of lavender-blue, bell-shaped flowers. Blooms heavily in late spring, reblooming in late summer if lightly trimmed after the first flush.

Additional information

Size

Bloom Time

Supports Pollinators

Exposure

Flower Color

Height

Attracts Hummingbirds

Soil Type

Width

For reference only:

#1 container : commonly known as a 1-gallon pot : 152 to 251 cubic inches.
#2 container : 320 to 474 cubic inches.
#3 container : 628 to 742 cubic inches.
#5 container : commonly known as a 5-gallon pot : 785 to 1242 cubic inches.

Pot Sizes (inches) Pot Equivalent (U.S. Gallons) Dry Soil Needed (Approx. cu.ft.)
4″ pot pint / 0.5 quart / .125 gallon 0.01 ft3
5-6″ pot quart / 0.25 gallon 0.03 ft3
7-8″ pot 1 gallon 0.13 ft3
8.5″ pot 2 gallon 0.26 ft3
10″ pot 3 gallon 0.40 ft3
11″ pot 4 gallon 0.53 ft3
12″ pot 5 gallon 0.66 ft3
13″ pot 6 gallon 0.80 ft3
14″ pot 7 gallon 0.94 ft3
16″ pot 10 gallon 1.33 ft3
18″ pot 15 gallon 2.00 ft3
21″ pot 20 gallon 2.67 ft3
24″ pot 25 gallon 3.34 ft3
30″ pot 30 gallon 4.01 ft3
Pot Sizes (inches)   International (Liters)
4″ pot   .5 L [.473]
5-6″ pot   1 L [.946]
7-8″ pot   4L [3.78]
8.5″ pot   7.5 L [7.57]
10″ pot   11 L [11.35]
11″ pot   15 L [15.14]
12″ pot   19 L [18.92]
13″ pot   22.5 L [22.71]
14″ pot   26.5 L [26.49]
16″ pot   38 L [37.85]
18″ pot   57 L [56.78]
21″ pot   75.5 L [75.70]
24″ pot   94.5 L [94.63]
30″ pot   113.5 L [113.56]

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