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Botanical Name:Pteris tremula
Common Name:australian brake , shaking brake , tender brake , tender brakefern
Sold As:Tube ($2.00), 140 mm pot ($5.00)
Plant
Type(s):
Fern
Growing
Conditions:
Partial Shade, Shade
Moist, Well Drained
Size
(HxW):
0.6-1.5 m high
Foliage:Soft to firm triangular fronds, divided 2-4 times, to 50 cm wide, hairless or few hairs below on midveins. Oblong stalkless final segments, veins distant; margins finely toothed. Midrib red-brown with narrow deep groove. Long shiny red-brown stem.
Flowers:Non-flowering. Spore cases in narrow band along the underside on leaf margins, extending to base of segment and to tip. Partially covered by recurved margin flap when young.
General
Comments:
An attractive fern for ferneries, moist gullies and containers. It is fast-growing and easy to grow in cultivation, but can become weedy.


Further
Information:
  1. Yarra Ranges Council (Victora, close to us)
  2. Royal Botanic Gardens Victoria (VICFLORA, technical, good photos)
  3. Wikipedia (free online encyclopedia)
  4. iNaturalist
  5. NatureMapr (Canberra)
  6. Royal Botanic Gardens (Kew UK, technical)
Plant
Propagation:

Method 1: Division (Faster)

  1. Timing: Spring or early summer when the plant is actively growing.
  2. Process: Gently dig up the mature fern, use a sharp knife to cut the rhizome (underground stem) into sections, ensuring each piece has roots and fronds.
  3. Planting: Pot each section in fresh, moist potting mix (peat-based or with leaf mould), keeping the crown just above the soil.
  4. Care: Water well and keep in a warm, humid spot. 

Method 2: Spore Propagation (For Many Plants)

  1. Collect Spores: Wait for brown, mature spores to form on the underside of fronds; tap them onto clean paper.
  2. Prepare Medium: Use a sterile, well-draining mix (like peat/perlite) in a container with a lid or plastic wrap.
  3. Sow & Mist: Sprinkle spores lightly and evenly over the surface, then mist gently to moisten.
  4. Germinate: Cover to maintain humidity; place in warmth and shade; expect germination in 2-4 weeks.
  5. Pot Up: Once tiny plants form, carefully transplant them into individual pots. 


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