Article Figures & Data
Tables
Pinus aristata 2000-4000 years Sequoiadendron giganteum 2000-3000 Chamaecyparis nootkatensis 1000-3500 Sequoia sempervirens 1000-2200 Thuja plicata 1000 + Picea sitchensis 750 + Pseudotsuga menziesii 750-1200 Larix occidentalis 700 + Quercus garryana 500 + Querous alba 500 + Tsuga heterophylla 500 + Fagus spp. 300 Quercus spp. 300 Carya spp. 300 Betula alba 50 Taken from Fowells (1965).
- Table 2.
Length of juvenile period in some woody plants. Juvenile period based on the appearance of the first flower under natural conditions.
Rosa (Hybrid tea) 20-30 days Vitis spp. 1 year Prunus spp. 2-8 years Pyrus spp. 4-8 years Citrus spp. 5-8 years Sequoia sempervirens 5-15 years Pinus monticola 7-20 years Malus spp. 8-10 years Hedera helix 10 years Thuja plicata 15-25 years Pseudotsuga menziesii 20 years Pinus aristata 20 years Sequoiadendron giganteum 20 years Tsuga heterophylla 20-30 years Picea sitchensis 20-35 years Quercus robur 25-30 years Abies amabilis 30 years Fagus sylvatica 30-40 years