Arrowleaf Sida

Year-round

Arrowleaf sida is a fast-growing warm-season plant that extension programs in the region generally treat as a weedy grower in open, disturbed ground, so keeping it contained takes regular attention.

• Grow in full sun, it does not persist under taller grass or shade cover
• Tolerates a wide range of soils, including the clay common around Memphis, and handles drought once established
• Cut or mow before it sets seed to limit spread into nearby beds and lawn
• Hand-pull young plants while the taproot is still small, established plants pull harder
• Keep an eye on disturbed or bare patches nearby, that is where it reseeds most readily

Regular mowing or edging before it flowers and sets seed keeps this plant from reading as an unmanaged weed patch out front.

Fall

Growth slows as the Memphis area heads toward its average first frost in late October, and any remaining seed heads should be removed before they drop.

• Cut and remove any late seed heads before frost to reduce next year's seedlings
• Clear plants from beds now rather than leaving them to overwinter as dead stems
• Continue checking disturbed soil, late-season seedlings can still appear in a mild fall
• No watering needed as growth winds down

Winter

Arrowleaf sida dies back with frost in the Memphis area and does not persist as a green plant through winter here.

• Clear dead stems and any remaining seed heads over winter to reduce spring seedlings
• Check mulched beds for stray seedlings on unusually mild winter days
• No watering or other maintenance needed during dormancy
• Plan spring monitoring of disturbed soil areas now

Spring

Arrowleaf sida germinates from seed as soil warms in spring, so this is the window to catch new seedlings before they establish.

• Watch bare or disturbed soil for new seedlings once temperatures climb after the last frost
• Hand-pull seedlings while small, the taproot is easiest to remove early
• Mulch open beds to slow new germination
• No fertilizing needed, it grows readily in average soil

Summer

This is the plant's main growth and flowering period through Memphis's hot, humid summer, and where it gets away from gardeners fastest.

• Mow or cut back before flowering to prevent seed set
• Pull remaining plants by hand where practical, especially near bed edges
• Check disturbed ground and lot edges regularly, new growth appears quickly in summer heat
• Water is rarely needed, it tolerates dry summer stretches well

Staying ahead of summer seed set is the single best way to keep this plant from spreading into a visible front-yard patch.