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BANKSIA integrifolia ssp monticola
White Mountain Banksia
Family: Proteaceae
Characteristics: Tall shrub to 5 m or Tree to 20 m
Seeds per packet: 5
A hardy and versatile garden plant that is widely planted in Australian gardens with pale yellow flowers open from late summer to winter.
The leaves are shiny dark green above and silvery on the underside, new growth is covered in short silvery hairs.
Similar to Banksia integrifolia subsp. integrifolia, but varies in having narrower, longer foliage. Flowers are similar but may have a tinge of pink depending on locations in the wild.
Varying in habit from a shrub to 5 metres in exposed areas to a tree to 20 metres in ideal conditions.
Occurs naturally in the Blue Mountains and in northern New South Wales.
Prefers light neutral well-drained soil in an open sunny position. Drought and frost hardy. Avoid waterlogged soils.
Image by Jon Tann cc-by-2.0
The best time to sow Banksia seeds is autumn or spring. Sow in contains and transplant when they are big enough to handle.
The growing medium should be well draining but should remain damp between watering. Banksia dislikes wet roots, so don't overwater them, or they will rot.
Sow the seed flat around 5mm deep. Vermiculite is an excellent medium to cover the surface as it helps retain moisture and controls the temperature.
Germination should occur in 14-40 days at 20-25°C
Pre-germination of seeds by sowing into a closed container containing moist vermiculite or similar material is also helpful for germinating seeds, particularly for winter sowing when outdoor temperatures may be unsuitable. Germination usually occurs in 1-2 weeks using this method, and when the root has reached about a centimetre or so in length, the seedling can be placed into a small pot of seed-raising mix.
Pre-treatment of smoke is not critical to the germination of this species. However, many members of the Proteaceae family are responsive to the pre-treatment of smoke.
Smoke treatments are simple and can be undertaken by soaking the seed overnight or applying it to the surface after sowing; both provide good results.
Smoke treatments are available by clicking here.
*Please note:
- Please do not be too hasty to discard seeds that do not germinate; seeds will often lay dormant until the conditions are similar to their natural germination requirements.
- As with all seeds, they must have adequate water to germinate, keep them moist but not too wet.
- These growth notes are provided as guidance only and do not guarantee successful germination.
- The customer should do their due diligence that they are suited to their region.
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Importing to Tasmania Prohibited