273. Pinus elliottii 'Densa'

Common name(s): South Florida Slash Pine

Plant type: evergreen large tree
Primary method of propagation: seed
Alternate propagation method(s): cutting, grafting/budding, layering

Propagation by Cuttings

Cutting type: stem tip
Time of year to take cuttings: late autumn
Cutting maturity: semi-hardwood
Rooting hormone : IBA TALC 8000 PPM
Rooting environment : intermittent mist
Soil temperature for best rooting : 75-80 degrees F
Time to rooting : 16-22 weeks
Comment: Juvenile cuttings from younger trees root best.

Propagation by Seed

Time of year to collect seed: autumn
Time of year to sow seed: spring
Seed treatment : 40F for 2mo.
Preferred temperature for germination : 72 degrees F
Time required for germination : 2-6 weeks
Comment: Kiln drying cones. Fusiform rusts. Damping-off.

Propagation by Layering

Type of Layering: air
Time of year to layer: early summer
Wounding: remove a ring of bark

Propagation by Grafting

Time of year to graft: late winter
Type of graft: side graft