 Best Sellers Botanical Name: Calycanthus floridus  Botanical Name: Catalpa speciosa  Botanical Name: Cercis canadensis Northern Zone 5  Botanical Name: Cladrastis kentukea  Botanical Name: Coffea arabica  Botanical Name: Cornus sericea  Botanical Name: Eucalyptus deglupta  Botanical Name: Nyssa sylvatica Southern  Botanical Name: Passiflora caerulea  Botanical Name: Pinus eldarica  Botanical Name: Pinus parviflora  Botanical Name: Pinus strobus New York  Botanical Name: Prunus avium 'CVI'  Botanical Name: Prunus avium Alkavo  Botanical Name: Sequoiadendron giganteum  Botanical Name: Tilia cordata  Botanical Name: Trifolium repens  Botanical Name: Vitis vinifera « back My Seeds have been Sitting Around for A While Are they Still Good?Maintaining Seed Viability Non-viable seeds are often the cause of failure during sowing. There are many causes of poor viability. Many times viable seeds can be separated from non-viable seed by floating in water. Simply a test where you cut open the seed to inspect the embyro. This test gives you a good idea if the seed is viable, but is not 100% accurate.
3. Actual Germ test This is just a test where you grow the seed and determine how many germinated and how many did not. This is the most accurate, but takes the longest
4. Tetrazolium Chloride (TZ) test This is a test where a clear TZ solution is used to soak the seed. The viable seeds have the enzymes capable of turning that solution red. |
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