Granvia Gold, also known as Strawflower, is an annual flowering plant native to Australia. Suntory developed this cultivar for mildew resistance, vigor, and large flowers. Granvia offers a mounding habit of 18-30" tall and 18-24" wide, with big golden flowers in bloom from May through September. This plant is mildew resistant and heat tolerant, attracting butterflies to the garden. Strawflower flourishes in full sun with moderate water, bringing a splash of color to landscape beds, large patio containers, and borders. Bracteantha's papery flowers are a lovely addition to dried flower arrangements or home-grown potpourri. Create a stunning display of color by planting Gold with Harvest Orange.
Granvia Gold Selling Tips
Sell Granvia Gold to customers looking for a colorful, low-maintenance annual for landscape borders or containers. Customers will love this plant's many benefits. It offers mildew resistance, and heat tolerance, and it has the tallest Bracteantha habit and largest flower available. Attract butterflies with cheerful long-lasting golden blooms in large containers or the landscape. Granvia reaches 18-30" tall with a vigorous mounded habit and blooms from May through September. It excels as a cut and dried flower, suitable for arrangements and potpourri. Make an attractive mixed container or landscape bed by pairing this plant with Ageratum, Snapdragon, Nigella, Veronica, Celosia, Verbena, and Salvia.
Coach Your Customer
1. Space plants 18-24" apart in well-drained soil in full sun. Use well-draining potting soil in containers.
2. Water regularly but don't allow standing water.
General Growing Tips For Your Rooted Cutting Liner
For best results with Granvia Gold, plant three rooted liners per gallon container. Use a well-drained soil with a pH of 5.8-6.2, light feed (200 ppm N), and temperatures of 65-76 daytime and 56-61 nighttime. Control growth with a Bonzi spray or drench and a Sumagic spray. You may see thrips, aphids, and whiteflies. Stem and root rot can be a problem. Apply a fungicide drench at transplant.
Flowering
Gold-yellow flowers bloom from May through September.
Pinching
This plant doesn't require pinching.
Spacing
Space containers for adequate airflow around the base of each plant and to allow sunlight to penetrate to the soil level.
Height Control
Use Bonzi spray at 20-30 ppm,Bonzi drench at 2-3 ppm, or Sumagic spray at 10-20 ppm.
Aphids are small, soft-bodied insects that cause damage by sucking sap from plant tissue. They reproduce quickly and are particularly attracted to young growth. Curling and yellowed leaves, stunted growth, and stickiness on leaves are signs of an infestation. These insects also spread diseases and reproduce rapidly. Use biological controls or horticultural oils to discourage and kill aphids.
Thrips are tiny insects that eat plant tissue and can transmit viruses. Watch for silvery-white streaks or black spots on foliage and distorted growth. Use natural predators (like predatory mites), insecticidal soap, neem oil, and sticky traps to control infestations and prevent spread.
Whiteflies are small, winged insects that eat plant sap and cause yellowed leaves and stunted growth. Severe infestations can lead to plants dying. Prevent infestations by sanitizing surfaces and tools and removing debris. Introduce natural predators and use sticky traps to control populations. Insecticidal soaps and oils are also effective against this pest.
Disease
This plant can be prone to stem and root rot. Take the following general precautions in your commercial greenhouse as part of an Integrated Pest Management program:
Apply a fungicide drench at transplant. Water at the base of each plant in the morning and allow the soil to dry between waterings. Provide good airflow in your greenhouse. We recommend using horizontal airflow fans. Space containers for airflow and sunlight to reach the base of each plant.
Stem Rot is a fungal disease that causes wilting, browning, and death of plant stems. Prevent infection with proper sanitization, adequate drainage, and good airflow. Don't overwater, and allow the soil to dry slightly between waterings. Maintain appropriate temperatures and humidity levels in the greenhouse and grow disease-resistant plants. Regularly check plants for signs of disease and remove and destroy infected plants to prevent spread. Apply a fungicide if necessary.
Root Rot occurs in poorly drained or overly wet soil, which becomes the host for several types of fungi. It causes stunted growth, wilting, and root system decay. Prevention is the best treatment, and you will avoid most root rot problems by using clean, well-draining media, appropriate containers, and good watering practices for finishing seedling plugs. Inspect plants for signs of disease regularly. Repot infected plants in well-draining soil, adjust your watering schedule, provide better airflow, and use a fungicide if needed.
Planting Granvia Gold Liners
We recommend planting three rooted plugs per gallon container. This plant won't do well in 4-inch containers or 1801s. Use a well-drained soil and completely bury the ellepots evenly spaced in the container.
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.
Bracteantha Granvia Gold Quick Reference Guide
10 Inch crop time
8-10 Weeks
Bloom Period
Fall, Spring, Summer
Color
Yellow
Habit
Mounding
Height
18-30 Inches
Light
Full Sun
Minimum Temp
56
Water Needs
Moderate
Patented Plant
Yes
Current Availability
Current Availability
02-17-2025 (Week 08)
0
02-24-2025 (Week 09)
0
03-03-2025 (Week 10)
0
03-10-2025 (Week 11)
0
03-17-2025 (Week 12)
0
03-24-2025 (Week 13)
0
03-31-2025 (Week 14)
15,600
04-07-2025 (Week 15)
16,200
04-14-2025 (Week 16)
6,200
04-21-2025 (Week 17)
19,300
04-28-2025 (Week 18)
19,500
05-05-2025 (Week 19)
20,800
05-12-2025 (Week 20)
20,400
05-19-2025 (Week 21)
0
05-26-2025 (Week 22)
0
06-02-2025 (Week 23)
0
06-09-2025 (Week 24)
0
06-16-2025 (Week 25)
0
06-23-2025 (Week 26)
18,000
06-30-2025 (Week 27)
0
07-07-2025 (Week 28)
0
07-14-2025 (Week 29)
14,000
07-21-2025 (Week 30)
0
07-28-2025 (Week 31)
100
08-04-2025 (Week 32)
200
08-11-2025 (Week 33)
2,200
08-18-2025 (Week 34)
2,300
08-25-2025 (Week 35)
2,000
09-01-2025 (Week 36)
0
09-08-2025 (Week 37)
2,000
09-15-2025 (Week 38)
2,000
09-22-2025 (Week 39)
0
09-29-2025 (Week 40)
0
10-06-2025 (Week 41)
0
10-13-2025 (Week 42)
0
10-20-2025 (Week 43)
0
10-27-2025 (Week 44)
0
11-03-2025 (Week 45)
0
11-10-2025 (Week 46)
0
Granvia Gold, also known as Strawflower, is an annual flowering plant native to Australia. Suntory developed this cultivar for mildew resistance, vigor, and large flowers. Granvia offers a mounding habit of 18-30" tall and 18-24" wide, with big golden flowers in bloom from May through September. This plant is mildew resistant and heat tolerant, attracting butterflies to the garden. Strawflower flourishes in full sun with moderate water, bringing a splash of color to landscape beds, large patio containers, and borders. Bracteantha's papery flowers are a lovely addition to dried flower arrangements or home-grown potpourri. Create a stunning display of color by planting Gold with Harvest Orange.
Granvia Gold Selling Tips
Sell Granvia Gold to customers looking for a colorful, low-maintenance annual for landscape borders or containers. Customers will love this plant's many benefits. It offers mildew resistance, and heat tolerance, and it has the tallest Bracteantha habit and largest flower available. Attract butterflies with cheerful long-lasting golden blooms in large containers or the landscape. Granvia reaches 18-30" tall with a vigorous mounded habit and blooms from May through September. It excels as a cut and dried flower, suitable for arrangements and potpourri. Make an attractive mixed container or landscape bed by pairing this plant with Ageratum, Snapdragon, Nigella, Veronica, Celosia, Verbena, and Salvia.
Coach Your Customer
1. Space plants 18-24" apart in well-drained soil in full sun. Use well-draining potting soil in containers.
2. Water regularly but don't allow standing water.
General Growing Tips For Your Rooted Cutting Liner
For best results with Granvia Gold, plant three rooted liners per gallon container. Use a well-drained soil with a pH of 5.8-6.2, light feed (200 ppm N), and temperatures of 65-76 daytime and 56-61 nighttime. Control growth with a Bonzi spray or drench and a Sumagic spray. You may see thrips, aphids, and whiteflies. Stem and root rot can be a problem. Apply a fungicide drench at transplant.
Flowering
Gold-yellow flowers bloom from May through September.
Pinching
This plant doesn't require pinching.
Spacing
Space containers for adequate airflow around the base of each plant and to allow sunlight to penetrate to the soil level.
Height Control
Use Bonzi spray at 20-30 ppm,Bonzi drench at 2-3 ppm, or Sumagic spray at 10-20 ppm.
Aphids are small, soft-bodied insects that cause damage by sucking sap from plant tissue. They reproduce quickly and are particularly attracted to young growth. Curling and yellowed leaves, stunted growth, and stickiness on leaves are signs of an infestation. These insects also spread diseases and reproduce rapidly. Use biological controls or horticultural oils to discourage and kill aphids.
Thrips are tiny insects that eat plant tissue and can transmit viruses. Watch for silvery-white streaks or black spots on foliage and distorted growth. Use natural predators (like predatory mites), insecticidal soap, neem oil, and sticky traps to control infestations and prevent spread.
Whiteflies are small, winged insects that eat plant sap and cause yellowed leaves and stunted growth. Severe infestations can lead to plants dying. Prevent infestations by sanitizing surfaces and tools and removing debris. Introduce natural predators and use sticky traps to control populations. Insecticidal soaps and oils are also effective against this pest.
Disease
This plant can be prone to stem and root rot. Take the following general precautions in your commercial greenhouse as part of an Integrated Pest Management program:
Apply a fungicide drench at transplant. Water at the base of each plant in the morning and allow the soil to dry between waterings. Provide good airflow in your greenhouse. We recommend using horizontal airflow fans. Space containers for airflow and sunlight to reach the base of each plant.
Stem Rot is a fungal disease that causes wilting, browning, and death of plant stems. Prevent infection with proper sanitization, adequate drainage, and good airflow. Don't overwater, and allow the soil to dry slightly between waterings. Maintain appropriate temperatures and humidity levels in the greenhouse and grow disease-resistant plants. Regularly check plants for signs of disease and remove and destroy infected plants to prevent spread. Apply a fungicide if necessary.
Root Rot occurs in poorly drained or overly wet soil, which becomes the host for several types of fungi. It causes stunted growth, wilting, and root system decay. Prevention is the best treatment, and you will avoid most root rot problems by using clean, well-draining media, appropriate containers, and good watering practices for finishing seedling plugs. Inspect plants for signs of disease regularly. Repot infected plants in well-draining soil, adjust your watering schedule, provide better airflow, and use a fungicide if needed.
Planting Granvia Gold Liners
We recommend planting three rooted plugs per gallon container. This plant won't do well in 4-inch containers or 1801s. Use a well-drained soil and completely bury the ellepots evenly spaced in the container.
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.
Bracteantha Granvia Gold Quick Reference Guide
10 Inch crop time
8-10 Weeks
Bloom Period
Fall, Spring, Summer
Color
Yellow
Habit
Mounding
Height
18-30 Inches
Light
Full Sun
Minimum Temp
56
Water Needs
Moderate
Patented Plant
Yes
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