Height:

3.5-4.0 Feet

Spread:

4.0-4.5 Feet

Hardiness Zones:

5,6,7,8,9,10

Flower Color:

Purple shades

Foliage Color:

Green shades

Sunlight:

Full Sun (> 6 hrs. Direct Sun)

Water Requirements:

Low Water Needs Average Water Needs

Soil Quality:

Average Soil Quality Fertile Soil Quality

Soil Chemistry:

Neutral Soil (pH = 7.0) Alkaline Soil (pH > 7.0)

Bloomtime:

Late Summer Early Fall Long Blooming

Attracts Wings:

Attracts Butterflies Attracts Hummingbirds Bee Friendly

Critter Resistant:

Deer Resistant

Growth Rate:

Rapid

Garden Style:

Asian Eclectic

Other Features:

Border Plant Drought Tolerant Fragrant Flowers Specimen Focal Point

Origin:

Not Native to North America

Buddleias should be planted in a full sun location with fertile, moist, well-drained soil. Studies have shown that adding lime to the soil will result in increased growth and better floral quality. They are also moderately drought tolerant once established.

Since they frequently die all the way back to the ground in northern winters, it is best to cut back all of the old wood to about 12" in the spring. Doing so will result in more compact plants. They will quickly grow back to their normal height by fall and will flower just as prolifically in late summer since they bloom on new wood. You may notice that the flowers tend to be longer and deeper colored in cooler weather.

Buddleias tend to break dormancy late in the spring, so don't worry if you don't see anything happening with them when your other shrubs start to leaf-out. These are very durable and reliable plants.

Growing Temperature:

65° F

Holding Temperature:

50-60° F

Soil PH:

5.8-6.5

EC (What is EC?):

2.0-3.0 pour through method

Fertility:

Feed with a constant liquid fertilization program using rates of 75-100 ppm nitrogen with every irrigation. For Controlled Release or Slow Release Fertilizer, see your preferred supplier for recommended rates for incorporation or top dressing, as it varies by fertilizer.

Vernalization:

Not required.

Pests & Diseases:

Root-knot nematode, aphids, mites.

Downy mildew, Stem canker, root rot, scab.

Potting & Timing:

Plants will grow quickly under warm temperatures and more slowly under cool temperatures. If grown under cool conditions, plants will remain dormant for an extended period of time.

Moisture:

For potting soil use commercial planting media. Water sparingly until plants begin to break dormancy. Once plants begin growing, water thoroughly and allow to dry slightly between waterings.

Planting Level:

Crown even with soil line.

PGRs/Pinching:

Apply Uniconazole (Sumagic/Concise) at 5 ppm.
It is best to begin PGR applications about two weeks following the pinch for more vigorous varieties, and reapply them at 7 to 10 day intervals if additional control is necessary.

Lighting:

Buddleia are obligate long-day plants and will not flower unless grown under long-day conditions.

Other Comments:

In the landscape: Studies have shown that when butterfly bushes are pruned in the fall before going dormant and when weather conditions are still favorable for growth, the chances of injury and possible death increase. Therefore, plants should be pruned back hard in the spring rather than in the fall.

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