Our Lavender Grosso Liners are well-rooted starter plants that come ready to transplant into your final container. The herb known as Lavandula Intermedia Grosso is widely used for its oils, aroma, flavor, and visual appeal in both culinary and ornamental applications. Grow Lavender Grosso as a container product or in 4 inch pots for landscape use.
General Growing Tips For Your Rooted Cutting Liner
For best results with Lavender Grosso, use a constant feed program of 150-200 ppm N on well rooted plants. A pH between 5.8 and 6.2 is important for the healthiest plant color. In most cases, an additional supplement of iron is recommended in order to deepen the coloration of the foliage.
Flowering
Lavender will flower naturally as the summer starts to heat up and the ground dries out from the spring rains. In our area we see lavender reach it's peak bloom period in late June or early July.
Pinching
We recommend that you pinch Lavender Grosso 5-10 days after transplanting to your final container. Growing herbs at cooler temperatures will help to keep the plants short and bushy.
Spacing
Space 4-inch, 6-inch, and gallon pots as needed to allow air flow and penetration of light between plants. Lavandula Intermedia Grosso can grow to a 24" spread. We do not recommend planting Lavender Grosso in 1801 or other traditional market trays as they tend to get leggy and have the potential for fungus problems when planted too close together.
Height Control
Plant growth regulators are not recommended on herbs.
Pests
Whiteflies, aphids, and occasionally mealybugs are all insects to watch out for with Lavender Grosso.
Disease
Lavender Grosso is not prone to many diseases, but don't oversaturate the soil. If the plant sits in moist soil for an extended amount of time, you could end up with root rot, botrytis or a bacterial blight. Botrytis grey rot is usually associated with wet or humid conditions. You can prevent botrytis by allowing the plant to dry out between waterings, allowing for good airflow in your greenhouse, and spacing to allow the sun to penetrate to the soil level. To best fight root rot in herbs, look for an organic or garden-safe fungicide, like Neem Oil.
Planting Lavender Grosso Liners
If you are planting 4" pots, 1 plant per pot should be sufficient. We recommend at least 3 starters per pot for 6" and larger. Use a well-drained soil in your baskets and plant your starter plants deep, allowing the ellepot to be completely covered by the soil. Plant it directly in the middle of your pot.
Pinching is recommended 5-10 days after transplantation of rooted cuttings. A second pinch may be necessary depending on the size and shape of the final pot.
Rooted Cuttings
Cuttings vary in size between different plant families. These rooted starter plants will arrive ready to be transplanted in to your final container. If they are to be used in a landscape application, you will need to establish them in a 4 inch pot or an 1801 before planting outside.
Herb Lavender Grosso Quick Reference Guide
4 Inch crop time
6 Weeks
10 Inch crop time
10 Weeks
Habit
Mounding, Trailing
Height
36 inches
Light
Full Sun
Minimum Temp
50
Perennial Zone
6-8
Water Needs
Moderate
Patented Plant
No
Current Availability
Current Availability
12-02-2024 (Week 49)
0
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1,910
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0
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0
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0
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0
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0
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0
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2,000
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6,000
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3,400
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6,900
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6,900
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5,100
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5,300
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7,300
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8,300
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6,600
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8,900
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6,400
04-28-2025 (Week 18)
6,500
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0
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7,500
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7,200
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7,500
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7,500
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300
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300
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300
06-30-2025 (Week 27)
300
07-07-2025 (Week 28)
300
07-14-2025 (Week 29)
2,700
07-21-2025 (Week 30)
2,700
07-28-2025 (Week 31)
5,100
08-04-2025 (Week 32)
5,100
08-11-2025 (Week 33)
5,100
08-18-2025 (Week 34)
5,100
08-25-2025 (Week 35)
4,700
09-01-2025 (Week 36)
4,700
Our Lavender Grosso Liners are well-rooted starter plants that come ready to transplant into your final container. The herb known as Lavandula Intermedia Grosso is widely used for its oils, aroma, flavor, and visual appeal in both culinary and ornamental applications. Grow Lavender Grosso as a container product or in 4 inch pots for landscape use.
General Growing Tips For Your Rooted Cutting Liner
For best results with Lavender Grosso, use a constant feed program of 150-200 ppm N on well rooted plants. A pH between 5.8 and 6.2 is important for the healthiest plant color. In most cases, an additional supplement of iron is recommended in order to deepen the coloration of the foliage.
Flowering
Lavender will flower naturally as the summer starts to heat up and the ground dries out from the spring rains. In our area we see lavender reach it's peak bloom period in late June or early July.
Pinching
We recommend that you pinch Lavender Grosso 5-10 days after transplanting to your final container. Growing herbs at cooler temperatures will help to keep the plants short and bushy.
Spacing
Space 4-inch, 6-inch, and gallon pots as needed to allow air flow and penetration of light between plants. Lavandula Intermedia Grosso can grow to a 24" spread. We do not recommend planting Lavender Grosso in 1801 or other traditional market trays as they tend to get leggy and have the potential for fungus problems when planted too close together.
Height Control
Plant growth regulators are not recommended on herbs.
Pests
Whiteflies, aphids, and occasionally mealybugs are all insects to watch out for with Lavender Grosso.
Disease
Lavender Grosso is not prone to many diseases, but don't oversaturate the soil. If the plant sits in moist soil for an extended amount of time, you could end up with root rot, botrytis or a bacterial blight. Botrytis grey rot is usually associated with wet or humid conditions. You can prevent botrytis by allowing the plant to dry out between waterings, allowing for good airflow in your greenhouse, and spacing to allow the sun to penetrate to the soil level. To best fight root rot in herbs, look for an organic or garden-safe fungicide, like Neem Oil.
Planting Lavender Grosso Liners
If you are planting 4" pots, 1 plant per pot should be sufficient. We recommend at least 3 starters per pot for 6" and larger. Use a well-drained soil in your baskets and plant your starter plants deep, allowing the ellepot to be completely covered by the soil. Plant it directly in the middle of your pot.
Pinching is recommended 5-10 days after transplantation of rooted cuttings. A second pinch may be necessary depending on the size and shape of the final pot.
Rooted Cuttings
Cuttings vary in size between different plant families. These rooted starter plants will arrive ready to be transplanted in to your final container. If they are to be used in a landscape application, you will need to establish them in a 4 inch pot or an 1801 before planting outside.
Herb Lavender Grosso Quick Reference Guide
4 Inch crop time
6 Weeks
10 Inch crop time
10 Weeks
Habit
Mounding, Trailing
Height
36 inches
Light
Full Sun
Minimum Temp
50
Perennial Zone
6-8
Water Needs
Moderate
Patented Plant
No
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