09/05/2026
🌱 THE SOIL MIX EXPERIMENT: Three Year Potting Mix Review
Stratified Mix - a Variation on a U C mix
We’re putting 3 different soil mixes to the test to answer a question every container gardener asks: how long can you really grow a genetic dwarf fruit tree in a pot?
Here’s the thing — most potting soils on the market weren’t designed for long-term fruit tree growing. They’re built for annuals, houseplants, quick-turnaround crops. Fruit trees and berries need something different if they’re going to thrive in containers for years, not just months.
So we’re running our own trial to find out what actually works — and we’re not doing it alone.
This trial is running alongside , , and the Fair Oaks Horticulture Center, each testing the same mixes in their own growing conditions. Same genetic dwarf varieties, three different soil mixes, three years of tracking growth, health, and fruit production.
Bonus: these mixes aren’t just for genetic dwarfs — they’re great for citrus, avocados, and other stone fruit growing in containers too. 🍑🍋🥑See Below for our 1st Mix Recipe!
Mix 3 - The Stratified Mix
Best For Avocados, Citrus, Standard and Dwarf Fruit trees
Why it works: Dry Bottom, Larger particle 1/4 pathway bark making up 1/3 of the bottom material discourages stagnant water from collecting in the lower container, decreasing the chance of Root Rot. The Bark in the bottom also lends itself to easier soil refreshing when it’s time.
Recipe (by parts)
5 parts potting soil - Acid Potting Soil preferred
1.5 parts Peat Moss
0.5 parts Chunk Coir
0.5 parts 1/4” Bark
3 Parts 1/4 Pathway Bark (Bottom layer only)
How to Use:
1. Fill Bottom of container with the 3 parts 1/4 Bark
2. Mix all other components
3. Plant and fill
4. Lightly tamp
5. Bark layer for mulch on container surface
6. Water in thoroughly
Follow along as we track the results!
