HERBS 1 BROTHERS, 92 Warren St., New York 45 
Cultural Notes 
Tree seed planters often attribute lack of success to the seed, which, 
although viable often fail to germinate by reason of improper sowing. To 
prevent such failure we give a few important cultural notes which we 
invite those of our customers who have no experience in tree seed culture 
to read carefully. 
Seeds having a hard skin or shell often remain for a year, or even 
longer, dormant in the ground. They may come up during the following 
season or even two or three years later. 
To succeed with tree seed it is important to keep the seed bed suffi¬ 
ciently moist but not too wet, as that may lead to “ Damping off,” especially 
in the case of coniferous seedlings. The seed bed must be of well drained 
loamy soil sufficiently sandy to prevent fungus attacking the seedlings. 
Shading is necessry, especially for- the delicate sorts. We recommend the 
use of disinfectants of which numerous brands have recently come on the 
market. 
Generally speaking, tree seed does not carry well in warm places; 
it should be at once placed in cold storage if it cannot be immediately used. 
Even then it often will not carry safely from season to season. 
Many sorts lose their germination quickly, especially Ulmus, Cherries, 
small-fruited Prunus, Mulberries, Elaeagnus, etc. These should be kept only 
in cold storage. 
It is physically impossible to treat conclusively in a few lines the subject 
. of tree seed germination. To all, even experienced growers of seedlings, 
flowering Cherries and stone fruited plants, we can recommend Bulletin No. 
569 of the New York State Agricultural Experiment Station at Geneva, 
N. Y., by Dr. H. B. Tuckey. In this Bulletin you will find this subject 
treated fully and practically. 
Growers of Conifers and Shrubs will do well to keep posted on the 
Bulletins of the Boyce Thompson Institute. 
We may recommend specially Dr. William Crocker’s Bulletin No. 15, 
dated March, 1930, copies of which may be secured, we believe, from the 
Boyce Thompson Institute for Plant Research, 1089 North Broadway, Yon¬ 
kers, New York. 
The following pointers may be of service to the nurseryman. They are 
based on our own experience but should be changed as condition seem to 
require. , 
Abelia 
Alpine Plants 
Andromeda 
Azalea 
Buddleia 
Corylopsis 
Deutzia 
Diervilla 
Enkianthus 
Lagerstroemia 
Ledum 
Leucothoe 
Menziesia 
Phyllodoce 
Rhododendron 
Ribes 
Tamarix 
Tripetaleia 
Weigela 
j 
Sow in peat moss or 
> fineleaf mould in well 
protected seed bed. 
Carpinus 
Clerodendron 
Disanthus 
Edgeworthia 
Hovenia 
Malus 
Meliosma 
Prunus 
Pterocarya ' 
Ulmus 
Zanthoxylum 
Sow as soon as possi- 
' ble after seeds are 
received. 
Aesculus 
Alnus 
Amygdalus 
Caragana 
Chamaerops 
(in warmer 
climate) 
Cinnamomum 
(in warmer 
climate) 
Cornus 
Corylus 
Forsythia 
Fraxinus 
Lagerstroemia 
Ligustrum 
Prunus triflora 
Sapindus 
Svringa 
filia 
^ Sow in autumn or 
when seed arrived. 
