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<P>
The Cornell peat-Lite Mix* is formulated for growing topical plants.
 The Foliage Plant Mix ** and the Epiphytic Mix** formulas are
adapted specifically for their respective plant types and are
modifications of the original peat-lite mix.<BR>

<P>
Cornell has used Osmocote 14-14-14 and Peters 14-7-7 fertilizers
with the tropical plant mixes with good results.  Other fertilizers
are omitted with the exception of dolomitic limestone and 20 per
cent superphosphate which are added to adjust the pH and to maintain
adequate phosphorus levels.  A trace element mix is added to assure
a balance of minor elements.  Trace element mixes can be purchased
from specialty gardening centers.<BR>

<P>
* &quot;Cornell Tropical Plant Mixes&quot; by Russel C. Mott
<P>
**L.H. Bailey Hortorium, Cornell University, Ithaca, New York
<BR>

<P>
Cornell Peat-lite Mix<BR>

<P>
Mix 1/2 cubic meter each of sphagnum peat moss and perlite or
vermiculite.  Add 6kg dolomitic limestone, 2.4 kg ammonium nitrate,
 1.5 kg superphoshate, and  0.3 kg potassium chloride (omit if
using vermiculite).<BR>

<P>
Cornell Foliage Plant Mix<BR>

<P>
The Cornell Foliage Plant Mix was developed for those plant that
need a growing medium with high moisture-retention characteristics.
 Plants having a fine root system or possessing many fine root
hairs are included in this group.<BR>

<TABLE>

<TR><TD WIDTH=221>Material</TD><TD WIDTH=221>1 cubic meter</TD>
</TR>

<TR><TD WIDTH=221>Sphagnum peat moss (screened 1/2 inch mesh)
</TD><TD WIDTH=221>0.5 </TD></TR>

<TR><TD WIDTH=221>Horticultural vermiculite (No. 2)</TD><TD WIDTH=221>0.25
</TD></TR>

<TR><TD WIDTH=221>Perlite (medium grade)</TD><TD WIDTH=221>0.25
</TD></TR>

<TR><TD WIDTH=221>Ground dolomitic limestone</TD><TD WIDTH=221>4.9 kg
</TD></TR>

<TR><TD WIDTH=221>Superphosphate 20% (powdered)</TD><TD WIDTH=221>1.2 kg
</TD></TR>

<TR><TD WIDTH=221>Fertilizer (10-10-10)</TD><TD WIDTH=221>1.6 kg
</TD></TR>

<TR><TD WIDTH=221>Iron sulfate</TD><TD WIDTH=221>0.4 kg</TD></TR>

<TR><TD WIDTH=221>Potassium nitrate (14-0-44)</TD><TD WIDTH=221>0.6 kg
</TD></TR>

<TR><TD WIDTH=221>Granular wetting agent</TD><TD WIDTH=221>0.9 kg
</TD></TR>

</TABLE>

<P>

<P>
Cornell Epiphytic Mix<BR>

<P>
The Cornell Epiphytic Mix was developed for plants that require
good drainage, aeration and have the ability to withstand drying
between warterings.  Plants having coarse, tuberous, or rhizomatous
roots are in this category.<BR>
<BR>

<TABLE>

<TR><TD WIDTH=221>Material</TD><TD WIDTH=221>1 cubic meter</TD>
</TR>

<TR><TD WIDTH=221>Sphagnum peat moss (screened 1/2 inch mesh)
</TD><TD WIDTH=221>0.33</TD></TR>

<TR><TD WIDTH=221>Douglas, red or white fir bark* (about 0.5 cm size)
</TD><TD WIDTH=221>0.33</TD></TR>

<TR><TD WIDTH=221>Perlite (medium grade)</TD><TD WIDTH=221>0.25
</TD></TR>

<TR><TD WIDTH=221>Ground dolomitic limestone</TD><TD WIDTH=221>4.2 kg
</TD></TR>

<TR><TD WIDTH=221>Superphosphate 20% (powdered)</TD><TD WIDTH=221>2.7 kg
</TD></TR>

<TR><TD WIDTH=221>Fertilizer (10-10-10)</TD><TD WIDTH=221>1.5 kg
</TD></TR>

<TR><TD WIDTH=221>Iron sulfate</TD><TD WIDTH=221>0.3 kg</TD></TR>

<TR><TD WIDTH=221>Potassium nitrate (14-0-44)</TD><TD WIDTH=221>0.5 kg
</TD></TR>

<TR><TD WIDTH=221>Granular wetting agent</TD><TD WIDTH=221>0.9 kg
</TD></TR>

</TABLE>

<P>
* Fir bark comes from Douglas fir, white or red fir, or redwood,
ground and screened to a definite size. Finally ground bark (about
0.5 cm) has a dry weight of about 200 g per liter cube.  Fresh
bark has a pH of about 5.0.  Upon weathering, it becomes slightly
more alkaline.  The bark contains some nutrients, but these will
not meet the requirements of growing plants.<BR>

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