Soil Introduction Tilthe Plant: Pansy
Pansy Viola x wittrockiana
- Plant type: Annual, Biennial*, Perennial*
- USDA Hardiness Zones: 7b - 11
- Height: 6" to 12”, Spread: 6 - 12"
- Exposure: full sun, *part shade
- Bloom Color: Blue, Orange, Pink, Purple, Red, White, Yellow
- Bloom Time: Early to late spring, not summer, Mid fall to Early winter
- Uses: Bedding plants, containers
- *Pansies are cool season flowers. They may or may not survive summer heat or winter cold.
- Physical condition of soil , especially in relation to its suitability for planting or growing a crop.
- The ability of the soil to form stable aggregates
- Improved by the addition of organic matter
- Improves both moisture holding and drainage.
- Improves the microbial balance of the soil
What is soil made of?
- Mineral material - different sizes
- decayed remains of plants and animals
- Soil microbes – especially fungi
- If the soil is compacted, how would the percentages change?
Soil Particle Size
- Why do you sink in a ball pit?
All particles are the same size
- Pore space is always the same
If particles were different sizes:
- Small particles are forced into pore spaces
Types of Soils
- The ability to hold just the right amount of water is the soils drainage
- Drainage is measured by percolation tests
- Sandy soils don’t hold enough water
Water – what is available for plants?
- Can disrupt earthworm and fungi
When can soil be worked in Spring?
- If a hand-full of soil forms a tight ball after releasing pressure, it needs to dry more
- Working soil too soon in spring causes compaction
Soil texture testing
- Clay area behind greenhouse