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General Information

Plant Care Instructions By Steve Brigham

In coastal Southern California, it is important to choose plum trees with a low chilling requirement. A number of Japanese Plum varieties generally fruit well in this climate, and some are even self-fruitful (others need a different variety for pollination). Since fruit is formed on year-old wood, it is often recommended to prune these vigorous trees in the late spring or early summer (rather than in winter), especially if you are pruning to control the size of the tree.

Is Indoor Plant?

No

These month by month plant care tasks are for plants in the following zones :
Sunset Zones : 22, 23, 24
USDA Zones :
Web Link - For more information

Plant Care Instruction

  • Scroll down or click on any month for plant care instructions
    • January
    • February
    • March
    • April
    • May
    • June
    • July
    • August
    • September
    • October
    • November
    • December
    January
    1. Buy

    Buy bare-root trees from a reputable source to get the varieties you want.
    2. Plant

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.
    3. Treat for Pest/Disease

    If pests or fungal diseases have been a problem, spray trees this month with a dormant spray that combines horticultural oil with lime sulfur.
    February
    1. Buy

    Buy bare-root trees from a reputable source to get the varieties you want.
    2. Plant

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.
    March
    1. Buy

    Buy established trees in containers from a reputable source to get the varieties you want.
    2. Plant

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.
    3. Fertilize

    Fertilize with a balanced plant food such as 10-10-10.
    4. Mulch

    Mulch to conserve water use.
    April
    1. Buy

    Buy established trees in containers from a reputable source to get the varieties you want.
    2. Plant

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.
    3. Water

    Water trees regularly during the growing season, but do not over-water.
    May
    1. Water

    Water trees regularly during the growing season, but do not over-water.
    2. Prune

    If crop is heavy, thin fruit as it forms to 4-6\" apart on the branches. Prune to control size and branch structure when you thin fruit.
    June
    1. Water

    Water trees regularly during the growing season, but do not over-water.
    2. Prune

    If crop is heavy, thin fruit as it forms to 4-6\" apart on the branches. Prune to control size and branch structure when you thin fruit.
    3. Mulch

    Mulch to conserve water use.
    4. Protect

    Protect ripening fruit from birds with netting, if necessary.
    5. Harvest

    Harvest plums when they are fully ripe and sweet.
    July
    1. Water

    Water trees regularly during the growing season, but do not over-water.
    2. Prune

    If you haven\'t already done so, prune trees to control size and branch structure.
    3. Protect

    Protect ripening fruit from birds with netting, if necessary.
    4. Harvest

    Harvest plums when they are fully ripe and sweet.
    August
    1. Fertilize

    Fertilize with a balanced plant food such as 10-10-10.
    2. Water

    Water trees regularly during the growing season, but do not over-water.
    3. Protect

    Protect ripening fruit from birds with netting, if necessary.
    4. Harvest

    Harvest plums when they are fully ripe and sweet.
    September
    1. Water

    Water trees regularly during the growing season, but do not over-water.
    2. Mulch

    Mulch to conserve water use.
    October
    1. Buy

    Buy established trees in containers from a reputable source to get the varieties you want.
    2. Plant

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.
    3. Water

    Water trees regularly during the growing season, but do not over-water.
    November
    1. Buy

    Buy established trees in containers from a reputable source to get the varieties you want.
    2. Plant

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.
    December
    1. Buy

    Buy established trees in containers from a reputable source to get the varieties you want.
    2. Plant

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.
  • Buy

    When's the best time to buy this plant? When can you buy these from seed (if you can)? When is it usually available? What are things to look for when you're buying it? Or anything other tidbit of information you can share!

    January

    Buy bare-root trees from a reputable source to get the varieties you want.

    February

    Buy bare-root trees from a reputable source to get the varieties you want.

    March

    Buy established trees in containers from a reputable source to get the varieties you want.

    April

    Buy established trees in containers from a reputable source to get the varieties you want.

    October

    Buy established trees in containers from a reputable source to get the varieties you want.

    November

    Buy established trees in containers from a reputable source to get the varieties you want.

    December

    Buy established trees in containers from a reputable source to get the varieties you want.

    Plant

    When's a good time to plant this plant or bulb? Any special planting instructions?

    January

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.

    February

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.

    March

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.

    April

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.

    October

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.

    November

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.

    December

    Plant bare-root trees immediately after you get them, or container trees anytime, in full sun in well-drained soil in a location with good air circulation and as much winter chilling as possible.

    Fertilize

    When should you fertilize this plant? Which kind of fertilizer do you recommend? Should you use different fertilizers at different times of year?

    March

    Fertilize with a balanced plant food such as 10-10-10.

    August

    Fertilize with a balanced plant food such as 10-10-10.

    Water

    Is there a time to reduce or increase watering? Any special requirements? Things to avoid during certain times of the year?

    April

    Water trees regularly during the growing season, but do not over-water.

    May

    Water trees regularly during the growing season, but do not over-water.

    June

    Water trees regularly during the growing season, but do not over-water.

    July

    Water trees regularly during the growing season, but do not over-water.

    August

    Water trees regularly during the growing season, but do not over-water.

    September

    Water trees regularly during the growing season, but do not over-water.

    October

    Water trees regularly during the growing season, but do not over-water.

    Prune

    When's a good time to prune this plant? How about deadheading, pinching back, trimming or any other grooming? Any special requirements?

    May

    If crop is heavy, thin fruit as it forms to 4-6\" apart on the branches. Prune to control size and branch structure when you thin fruit.

    June

    If crop is heavy, thin fruit as it forms to 4-6\" apart on the branches. Prune to control size and branch structure when you thin fruit.

    July

    If you haven\'t already done so, prune trees to control size and branch structure.

    Mulch

    Does this plant need to be mulched? Are there specific types of Mulch which are better for this plant? How much?

    March

    Mulch to conserve water use.

    June

    Mulch to conserve water use.

    September

    Mulch to conserve water use.

    Protect

    When and how should you protect this plant from birds, deer, rabbits? Does this plant need be covered, or wrapped or painted or moved?

    June

    Protect ripening fruit from birds with netting, if necessary.

    July

    Protect ripening fruit from birds with netting, if necessary.

    August

    Protect ripening fruit from birds with netting, if necessary.

    Treat for Pest/Disease

    How do you treat the common problems for this plant? What products or concoctions or natural means do you use? Any special requirements?

    January

    If pests or fungal diseases have been a problem, spray trees this month with a dormant spray that combines horticultural oil with lime sulfur.

    Harvest

    When's a good time to harvest this plant? What's the best way to harvest? Are there special requirements or features?

    June

    Harvest plums when they are fully ripe and sweet.

    July

    Harvest plums when they are fully ripe and sweet.

    August

    Harvest plums when they are fully ripe and sweet.

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