Weed of the Month

Bridal Creeper pg 37 Plants Out of Place by Shire of Mundaring

(Asparagus asparagoides)

The Bridal Creeper is a Weed of National Significance and is a major threat to biodiversity. It forms dense root mats which impede the root growth of other plants and often prevents native seedling establishment.

Climbing, wiry green stems grow annually from an underground perennial root system. The stems flower prolifically, producing red berries which are attractive to birds.

Control methods include biological control agents, leaf hopper and rust fungus will not kill but can help keep populations under control. Collect pieces of infected plant material from other sites and rub on healthy plants.

Small infestations can be successfully removed by digging out the root mat. Repeated removal of all stems as soon as they emerge will prevent flowering and seed set which may eventually exhaust the rhizomes and tubers.

 

Photos: Plants Out Of Place

Plant of the Month

Hibbertia Seed Notes for Western Australia by the Perth branch of the Wildflower Society of Western Australia (Inc.)

Hibbertia is a large genus with more than 150 species, mostly endemic to Australia. They can be found in temperate areas, with a few being found in arid or mountainous environments. Small to medium shrubs, sometimes prostrate but rarely twiners. Simple and alternate leaves, mostly yellow flowers some may be white or orange. Flowers have five sepals and five petals.

It tends to inhabit low shrub heathlands and sandplains, as well as open forest and woodland. Can grow in a range of soil types from sands to gravels to clay loams, in both well-drained sites and swampy locations. Susceptible to the root fungus disease, Phytophthora cinnamomic in areas of high rainfall.

Growing Hibbertia from seed tends to be difficult and most plants are grown from cuttings. Seed is dormant, but it is possible to germinate seed by removing the seedcoat, which may contain a germination inhibitor.

https://www.dpaw.wa.gov.au/images/documents/about/science/pubs/seednotes/sn17_hibbertia.pdf

Photo: Andrew Crawford in Seed Notes No.17