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General Information

Plant Care Instructions By Steve Brigham

Blue Hibiscus is a fast-growing, drought-tolerant Australian shrub that is popular for its showy blue, purple, or even white flowers that are produced off and on throughout the year. Hardy to around 23 degrees F., it needs a well-drained soil to grow well; and occasional pruning is important to make it bloom better and also lengthen its life. The several named varieties make the showiest, most compact garden plants -- look for \'Monterey Bay\' or \'Mood Indigo\' if you want a dark purple-flowered variety.

Is Indoor Plant?

No

These month by month plant care tasks are for plants in the following zones :
Sunset Zones : 13, 14, 15, 16, 17, 18, 19, 20, 21, 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. Protect

    Protect from heavy frost.
    February
    1. Water

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.
    2. Protect

    Protect from heavy frost.
    March
    1. Buy

    Buy healthy, vigorous plants.
    2. Plant

    Plant in full sun (a little shade is fine in hot-summer areas) in well-drained soil.
    3. Fertilize

    After pruning, fertilize very lightly with a balanced plant food and water in well.
    4. Water

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.
    5. Prune

    Prune moderately to control size and keep plants bushy. This will encourage fresh new growth and bloom, and prolong the plant\'s life.
    6. Mulch

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.
    April
    1. Buy

    Buy healthy, vigorous plants.
    2. Plant

    Plant in full sun (a little shade is fine in hot-summer areas) in well-drained soil.
    3. Water

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.
    4. Mulch

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.
    5. Pest/Disease Inspection

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.
    6. Treat for Pest/Disease

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.
    May
    1. Water

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.
    2. Mulch

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.
    3. Pest/Disease Inspection

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.
    4. Treat for Pest/Disease

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.
    5. Propagate

    Propagate from softwood cuttings of firm young growth.
    June
    1. Water

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.
    2. Mulch

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.
    3. Pest/Disease Inspection

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.
    4. Treat for Pest/Disease

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.
    5. Propagate

    Propagate from softwood cuttings of firm young growth.
    July
    1. Water

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.
    2. Mulch

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.
    3. Pest/Disease Inspection

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.
    4. Treat for Pest/Disease

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.
    5. Propagate

    Propagate from softwood cuttings of firm young growth.
    August
    1. Water

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.
    2. Mulch

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.
    3. Pest/Disease Inspection

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.
    4. Treat for Pest/Disease

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.
    5. Propagate

    Propagate from softwood cuttings of firm young growth.
    September
    1. Buy

    Buy healthy, vigorous plants.
    2. Plant

    Plant in full sun (a little shade is fine in hot-summer areas) in well-drained soil.
    3. Fertilize

    After pruning, fertilize very lightly with a balanced plant food and water in well.
    4. Water

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.
    5. Prune

    Prune moderately to control size and keep plants bushy. This will encourage fresh new growth and bloom, and prolong the plant\'s life.
    6. Mulch

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.
    7. Pest/Disease Inspection

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.
    8. Treat for Pest/Disease

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.
    9. Propagate

    Propagate from softwood cuttings of firm young growth.
    October
    1. Buy

    Buy healthy, vigorous plants.
    2. Plant

    Plant in full sun (a little shade is fine in hot-summer areas) in well-drained soil.
    3. Water

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.
    4. Mulch

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.
    November
    1. Water

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.
    2. Protect

    Protect from heavy frost.
    December
    1. Protect

    Protect from heavy frost.
  • 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!

    February

    Buy healthy, vigorous plants.

    March

    Buy healthy, vigorous plants.

    April

    Buy healthy, vigorous plants.

    September

    Buy healthy, vigorous plants.

    October

    Buy healthy, vigorous plants.

    November

    Buy healthy, vigorous plants from a specialty nursery.

    Plant

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

    February

    Plant in full sun in well-drained soil.

    March

    Plant in full sun (a little shade is fine in hot-summer areas) in well-drained soil.

    April

    Plant in full sun (a little shade is fine in hot-summer areas) in well-drained soil.

    September

    Plant in full sun (a little shade is fine in hot-summer areas) in well-drained soil.

    October

    Plant in full sun (a little shade is fine in hot-summer areas) in well-drained soil.

    November

    Plant in full sun in well-drained soil.

    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

    After pruning, fertilize very lightly with a balanced plant food and water in well.

    September

    After pruning, fertilize very lightly with a balanced plant food and water in well.

    Water

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

    January

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    February

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    March

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    April

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    May

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    June

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    July

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    August

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    September

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    October

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    November

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    December

    Water regularly and deeply during dry periods, but don\'t over-water. Established plants need only weekly or twice-monthly watering.

    Prune

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

    March

    Prune moderately to control size and keep plants bushy. This will encourage fresh new growth and bloom, and prolong the plant\'s life.

    September

    Prune moderately to control size and keep plants bushy. This will encourage fresh new growth and bloom, and prolong the plant\'s life.

    Mulch

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

    March

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.

    April

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.

    May

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.

    June

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.

    July

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.

    August

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.

    September

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.

    October

    Maintain a generous mulch around plants to conserve water use, but don\'t let the mulch get too close to the base of the plant.

    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?

    January

    Protect from heavy frost.

    February

    Protect from heavy frost.

    November

    Protect from heavy frost.

    December

    Protect from heavy frost.

    Pest/Disease Inspection

    What are the common problems this plant will face and when should you look for them to appear?

    April

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.

    May

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.

    June

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.

    July

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.

    August

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.

    September

    Watch for ants and the scale insects and mealybugs that they can farm at the base of the plant and along the stems.

    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?

    April

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.

    May

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.

    June

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.

    July

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.

    August

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.

    September

    Control ants, which will usually eliminate scale and mealybug problems. Control snails if they are a problem with a product containing iron phosphate.

    Propagate

    When's a good time to divide, take cuttings, layer or propagate this plant. Any special requirements?

    May

    Propagate from softwood cuttings of firm young growth.

    June

    Propagate from softwood cuttings of firm young growth.

    July

    Propagate from softwood cuttings of firm young growth.

    August

    Propagate from softwood cuttings of firm young growth.

    September

    Propagate from softwood cuttings of firm young growth.

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