Gardeners World said that the plant is a great display in a container or in the ground. Sow it under cover from March to May, then plant after the last frost. 

The plants can range in size, but they often grow to larger than 60 centimetres, according to The Morton Arboretum. Having a trellis or some kind of support will be beneficial for this plant.

They also need full sun exposure, at least six hours of direct sunlight daily. They also need moist, well-drained soil.

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The Morton Arboretum said the seeds should be scarified slightly and then soaked overnight before planting. There are no serious problems with this variety of flower when it comes to pests and diseases.

The plants are known for their growing speed. By planting now, you’ll have red and yellow flowers in no time. 

Spanish flag is native to Mexico and South America, but they are in the morning glory family. The colourful plant attracts birds and butterflies, specifically hummingbirds.