University of California
Contra Costa Master Gardeners
November in the Contra Costa Garden
November Garden To Dos
General Garden Care
- Prepare for cold weather—drain irrigation lines, prepare frames for cold sensitive plants, irrigate plants if cold temperatures are anticipated and it has not rained recently.
- Mow lawns, add a thin layer of compost if needed. Consider replacing lawns with less resource intensive (and labor intensive) plants.
- Rake leaves and shed as mulch or compost.
- Cover the compost pile(s) to keep them warmer and to minimize leaching.
- Remove winter weeds while small.
- Trap or bait for snails and slugs. http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7427.html.
- Check your garden for empty pots, etc., that can hold water and provide a habitat for mosquitoes.
Fruits & Vegetables
- Clean up summer vegetable garden. Remove all spent plant material and chop into bits for your compost pile.
- Plant cover crops (Legumes or Brassicas) to improve the soil for spring crops.
- Harvest Feijoa sellowiana, persimmons, walnuts. Prune as needed after harvesting.
- Spray peaches and nectarines for peach leaf curl at the end of the month. http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7426.html and http://www.ipm.ucdavis.edu/PMG/PESTNOTES/pn7481.html
Flowers & Landscaping
- Plant bulbs, trees and shrubs.
- Plant regionally appropriate natives.
- Divide perennials: Acanthus mollis, Hemerocallis, Kniphofia, Agapanthus.
- Prune Buddleia, Hibiscus syriacus, Hydrangea spp.
November Info
USDA zones range from 8-9B
Sunset zones range from 7-17
Average max. temp. 63°F, 17.2°C
Average min. temp. 41.5°F, 5.3°C
Average rainfall 3.14”, 7.96 cm.
Samhain (November 1) is the cross quarter day, halfway between the fall solstice and winter equinox.




