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Buddleja Shrubs with Purple Flowers


Buddleja


The type genus for the family of (Buddlejaceae) butterfly bush is consists of around 100 types of large, sprawling, and evergreen to deciduous shrubs known for their long flower spikes rich with nectar, which are a favorite with butterflies. They are from the Americas, Asia, and South Africa. A lot of types have a rough texture, narrow, lance-shaped leaves with pale, sometimes downy undersides. The Purple flowers, which are usually in spikes, also occur in globes heads or loose clusters and depending on the species, appear at different times. The genus is named for Adam Buddie (1660-1715), who was a theologian and early taxonomist. Some types are used in medicine, while others yield dyes.


Top Tip

Buddieja plants are
tough, undemanding,
fast growing,
and salt tolerant,
with abundant
flowers. In ideal
conditions, they
will flower in their
first year.

Cultivation


The evergreen species are not so hard as deciduous species, though they are not able to tolerate prolonged severe winters. Plant in sun or part shade with moist, fertile, well-drained soil. In order to keep the plants tidy regular trimming is necessary. Propagate from half-hardened cuttings in summer.


The shrubs in this genus root readily from softwood and greenwood nodal stem-tip or intcrnodal cuttings and from semi-ripe cuttings. Reduce foliage by half on Buddleja davidii cultivars. With B. globosa, avoid material affected by leaf and bud nematodes. Keep hardwood cuttings frost-free. Sow seeds outdoors where they arc to flower in 6—12 months when the soil reaches 50°F (10°C).


Name

Flower color

Blooming Season

Flower Fragrance

Plant Height

Plant Width

Hardiness Zone

Frost Tolerance

Buddleja alternifolia

Mauve-pink

Late spring to early summer

Yes

15ft
4.5m

12-15ft
3.5-4.5m

5-9

Yes

Buddleja davidii

Purple

Summer

Yes

10-20ft
3-6m

10-20ft
3-6m

4-10

Yes

Buddleja globosa

Orange-Yellow

Late spring to early summer

Yes

10-20Ft
3-6m

10-20ft
3-6m

7-9

Yes

Buddleja lindleyana

Purple

Summer

No

12ft
3.5m

12ft
3.5m

7-9

Yes

Buddleja lochinch

Violet-blue Summer

Summer

Yes

10-15ft
3-4.5m

8-10ft
2.4-3m

6-9

Yes

Buddleja weyeriana

Orange-yellow

Summer to autumn

Yes

15ft
4.5m

10-12ft
3-3.5m

6-9

Yes