Granvia Crimson Sun, 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 yellow-eyed red 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 Crimson Sun with Gold.
Granvia Crimson Sun Selling Tips
Sell Granvia Crimson Sun 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 red 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 Crimson Sun, 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
Yellow-eyed red 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 Crimson Sun 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 Crimson Sun Quick Reference Guide
10 Inch crop time
8-10 Weeks
Bloom Period
Fall, Spring, Summer
Color
Red, Yellow
Habit
Mounding, Upright
Height
18-30 Inches
Light
Full Sun
Minimum Temp
56
Water Needs
Moderate
Patented Plant
Yes
Current Availability
Current Availability
11-11-2024 (Week 46)
0
11-18-2024 (Week 47)
0
11-25-2024 (Week 48)
0
12-02-2024 (Week 49)
0
12-09-2024 (Week 50)
0
12-16-2024 (Week 51)
0
12-23-2024 (Week 52)
0
12-30-2024 (Week 01)
2,400
01-06-2025 (Week 02)
2,300
01-13-2025 (Week 03)
2,800
01-20-2025 (Week 04)
2,000
01-27-2025 (Week 05)
2,300
02-03-2025 (Week 06)
1,900
02-10-2025 (Week 07)
3,500
02-17-2025 (Week 08)
2,800
02-24-2025 (Week 09)
3,500
03-03-2025 (Week 10)
2,400
03-10-2025 (Week 11)
1,500
03-17-2025 (Week 12)
2,400
03-24-2025 (Week 13)
1,700
03-31-2025 (Week 14)
2,700
04-07-2025 (Week 15)
3,900
04-14-2025 (Week 16)
3,800
04-21-2025 (Week 17)
4,100
04-28-2025 (Week 18)
4,300
05-05-2025 (Week 19)
4,700
05-12-2025 (Week 20)
5,300
05-19-2025 (Week 21)
5,600
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)
0
06-30-2025 (Week 27)
3,800
07-07-2025 (Week 28)
3,100
07-14-2025 (Week 29)
3,500
07-21-2025 (Week 30)
3,800
07-28-2025 (Week 31)
100
08-04-2025 (Week 32)
400
Granvia Crimson Sun, 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 yellow-eyed red 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 Crimson Sun with Gold.
Granvia Crimson Sun Selling Tips
Sell Granvia Crimson Sun 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 red 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 Crimson Sun, 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
Yellow-eyed red 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 Crimson Sun 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 Crimson Sun Quick Reference Guide
10 Inch crop time
8-10 Weeks
Bloom Period
Fall, Spring, Summer
Color
Red, Yellow
Habit
Mounding, Upright
Height
18-30 Inches
Light
Full Sun
Minimum Temp
56
Water Needs
Moderate
Patented Plant
Yes
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