Species big blue stem
red-burgundy foliage and stems

big blue stem

Andropogon gerardii 'Red October'

Big Blue Stem (Andropogon gerardii 'Red October') is an amazing ornamental grass that grows to around 3 feet tall and 4 feet wide. It features bright red and purple-sheathed stems topped with large, feathery blooms in midsummer. Its foliage provides an attractive backdrop for its blooms, with deep green upper leaves turning yellow-green in fall. This heat-loving species can tolerate coastal conditions and is very drought tolerant. It is a great addition to any landscape, providing texture and movement in the garden. Big Blue Stem also offers wildlife a food source and shelter which is an additional bonus. With its showy appearance and hardy nature, Big Blue Stem offers an ideal solution for which to fill the garden beds in any location.

Cycle:

Perennial

Watering:

Minimum

Propagation:

Division,Cutting,Seed Propagation,Root Cutting,Layering Propagation

Hardiness Zone:

4 - 9

Flowers:

Purplish-red Flowers

Sun:

full sun,part sun/part shade

Soil:

Sandy Loamy Clay Rocky

Fruits:

blue,red,brown Fruits In Autumn Ready In Fall

Leaf:

Yes

Growth Rate:

High

Maintenance:

Low

Salt Tolerant:

Yes

Care Level:

Medium

watering

Big blue stem is an extremely drought-tolerant species. It should only need to be watered once every 2-3 weeks, depending on the climate. Check the soil before watering, it should be dry about 1” - 2” down. Water the plant deeply until some runs out from the bottom of the pots. Make sure to water the roots and leave it to soak for 15-30 minutes. This will help promote deep roots. If water is steaming hot, let it cool before applying it to the plant. If the soil feels dry enough, don’t water too much as this could damage the plant.

sunlight

Big blue stem or Andropogon gerardii 'Red October' requires a minimum of 6 hours of sunlight each day for proper growth and flowering. This sun-loving grass will thrive in full sun, but can tolerate some light shade in warmer climates. During the winter months when the days are shorter, if possible try to give the grass at least 3-4 hours of direct sunlight if possible. Allowing the grass to acclimate slowly to higher sun exposure throughout the summer can also help to promote strong growth.

pruning

Prune back the grass to a height of 6 to 12 inches using a sharp garden shears or hedge clippers. However, make sure to leave at least 1/3 of the topmost foliage intact as it is needed for the plant's ongoing photosynthesis. Additionally, leave at least 4-6 inches of stem attached when cutting to avoid any damage to the plant's base. Pruning should be done regularly to ensure that the grass does not become top-heavy and start drooping or flopping over due to its own weight. The main objective of pruning big blue stem (Andropogon gerardii 'Red October') is to promote a lush and full clump of grass. Pruning helps reduce the chances of disease and promotes healthier and continuous growth of new foliage. Additionally, cutting the grass back can also encourage better blooming and a fuller plant.

Season

Fall
Winter
Spring
Summer
Sep
Oct
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Starts Flowering

Big blue stem typically starts flowering in late summer or early fall, usually in August or September.

Harvest Fruit

grass The best time to start harvesting the fruits from Andropogon gerardii 'Red October' is in October.

Starts Flowering

Big blue stem typically starts flowering in late summer or early fall, usually in August or September.

Hardiness Map