We have some leftover fertilizer!

You must be a member of the San Diego Rose Society to buy fertilizer from us.
Click here to join our society!

Please fill out the form with the items that you would like to purchase. If too many people order the same items, we will allow the earliest orders to get the product. We only have a limited amount of each item. We will send you an individual email confirming which products you can pick up in-person.

You must pick up and pay for your fertilizer in-person most likely between
February 19-23 in San Carlos. Credit cards will be accepted. Specific dates/times and directions for pickup will be emailed to you.
If you have any questions, please contact us!

SAN DIEGO ROSE SOCIETY FERTILIZER INFO:

Rosarians around the world know roses are heavy feeders and benefit from a regular food and water diet throughout the growing year. Our society is committed to helping us provide this optimum diet for our roses. Our fertilizer sale will continue for the 13th year. Here’s our chance to plan ahead to provide our roses with the BEST and LEAST EXPENSIVE nutrients for optimum growth. We don't have to stockpile a lot of product now or pay for the fertilizer way in advance. We lovingly give our roses their spring feeding on FEBRUARY 14 (because we love our roses so much !!) 

In times of drought it is important that we feed our roses well & regularly. When roses are fed well they develop strong roots extending deep into the soil, and can withstand drought much easier.  

Bio-Cozyme Organic Stimulant   Application: 1 tsp to 1 Tbsp/gallon Compatible with all fertilizers, Accelerates NPK Biosynthesis, promotes earlier Flowering, Shorter growing period, Increased bud formation, Increased resistance to plant diseases, Improved appearance and aroma. Aids in achieving full genetic potential. 

HUMIC ACID 8% Organic (liquid)  Application - 1 tsp/gallon every several weeks, or for really bad soil - 1 Tbsp/gallon.   Humic acid retains nutrients and benefits plant growth. This is particularly good for potted roses because of the nutrient holding qualities of humus. 

Gardeners know that humus is wonderful for its effect in helping roses and other plants to grow. How can we help produce more humus in our soil and why is it so beneficial? Humus is a complex substance that results from the action of bacteria and fungi on organic matter. It is recognized as the dark brown to black material in the surface layers of the soil. The particles of humas are microscopic. Amending the soil by thoroughly mixing organic material such as planting mix or compost before planting is the initial way to build humus. In order to continue renewing the soil with humus, add 3-5 inches of organic much each year after pruning your roses. Organic fertilizer also makes a contribution. Many of the properties of humus are due to its negative charge. Think of it like a magnet. The multiple small humus particles with a negative charge hold on to nutrients, most of which have a positive charge. These include nitrogen in the form of ammonium, potassium and iron. Water also has a positive charge and is retained by humus. Humus also has a sponge-like quality that holds water for roots. Roses like a slightly acidic soil with a pH between 6.2 and 6.8. A pH of 7.0 is neutral with levels above this being alkaline and levels below being acidic. Humus plays a major role in stabilizing the pH so it does not become to alkaline or acidic. Humus decays very slowly, at an average rate of 3% per year. It is the largest source of nitrogen reserves in the soil. It consists of about 5% nitrogen and 0.5% sulfur. Humic acid is just one of the many components of humus and consists of organic materials. Most of the time the humic acid is derived from leonardite which is also known as brown coal. Leonardite is a mined product.

EDDHA IRON CHELATE 6% Powder-1 lb Application -1 tsp/gal    

Fully chelated DTPA iron chelate helps prevent iron chlorosis by maintaining and protecting iron availability in slightly acidic to slightly alkaline soils with a pH of up to 7.5. It prevents iron from binding with other compounds in the soil, allowing it to stay in a form readily available for plant use. Eddha 6% is a good price and can be added to the above several times a year for increasing the deep green leaves.