Penstemon 'Sour Grapes'

Penstemon 'Sour Grapes'

A garden legend.

 
DELIVERY STATUS:
Short delay - awaiting stock
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Elegant spikes of magenta blue tubular, bell shaped flowers that bloom from mid summer to early mid autumn. Elegant spikes of head turning, violet blue, tubular flowers. With blooms from mid summer to frost.

While new to us it has been around for many years and stood the test of time and holds the RHS Award of Garden Merit for its ease of growth, vigorous nature and appealing form.

The sizable, colourful flowers crowd the strong, upright stems from late spring to autumn. They take the heat and their compact nature works well in both containers and gardens.

These are the hardiest Penstemon we have ever met, they are also downy mildew resistant.

The dense foliage has a hint of blue and grows with a nice density. Penstemon can work well in gardens or pots and the flowers are even great for picking. What is more, the flowers are loved by bees, butterflies and other beneficial insects.

Happy in poor, to moderately fertile, or humus rich, well drained soils. They won’t tolerate boggy soils though so ensure good drainage. Water to establish then only if rainfall is low, they become dry tolerant once they settle in.

Dead head regularly during the bloom season to promote more blooms. It is a good idea to prune them back to the woody base winter/early spring to promote healthy growth.


Supplied as: Pots
Size: 10 cm

Code

PNHSG

Botantical name

Penstemon hartwegii

Height

50-70cm

Width

40cm

Flowers

Spring to Autumn

Climate

Cool to Mediterranean

Availability

Australia wide

Frost hardiness

Fully Hardy

Aspect

Full Sun to Semi Shade

Supplied as

Pots

Size

10 cm

Water needs

2