Few plants pay you back as generously for as little effort as the gazania. Also called the treasure flower or African daisy, this low, mounding South African native opens jewel-toned blooms in orange, gold, rose, bronze, cream, and red, then asks for almost nothing in return. It shrugs off heat, drought, poor soil, and salt spray, which is exactly why it has become a go-to for hot borders, gravel gardens, rock walls, containers, and that baking strip of dirt by the curb where nothing else survives.
The catch is small but real: gazania has a few firm preferences, and getting them right is the difference between a plant that blooms nonstop from early summer into fall and one that sulks with closed flowers all season. Here is everything you need to grow gazania well, plus the zone-by-zone answer to whether it will come back next year.
Gazania at a glance
Gazania (botanically Gazania rigens, formerly Gazania splendens) belongs to the daisy family, Asteraceae, alongside sunflowers and gerbera daisies. It stays compact, typically 6 to 12 inches (15 to 30 cm) tall and spreading 6 to 18 inches (15 to 45 cm) wide, forming neat mounds or, in trailing types, a low groundcover mat. Silvery-green, dandelion-shaped foliage sits below daisy-like flowers 3 to 4 inches across, most with a dark contrasting “eye” at the petal base.
The name traces back to Theodorus of Gaza, a 15th-century Greek-Italian scholar who translated key botanical texts into Latin. Because gaza means “treasure” in Latin, the common name treasure flower stuck. The species name rigens means “stiff,” a nod to the plant’s sturdy, upright flower stems.
Where to plant gazania for the most blooms
Gazania is a full-sun plant, full stop. Give it at least 6 to 8 hours of direct light a day. The flowers are light-sensitive and physically close in low light, so a shaded bed produces sparse blooms or none at all, and stems stretch and flop as they reach for the sun. A hot, open spot that other plants find punishing is ideal.
It also wants warmth. Gazania thrives in regions with long, hot summers and tolerates highs that wilt fussier annuals, though flowering can slow when temperatures push past 100°F (38°C). More important than heat tolerance is its dislike of humidity. Damp, muggy air invites the fungal problems covered below, so in humid climates choose your most exposed, well-ventilated site rather than a sheltered, still corner.
Coastal and gravel gardens suit it perfectly. Gazania handles salt spray and sandy ground that defeats most flowers, making it a reliable choice for seaside beds, slopes, and exposed planters.
The right soil: poor and fast-draining beats rich
This is where many gardeners go wrong by being too kind. Gazania evolved in lean, sandy South African ground and performs best in poor, well-drained soil. It tolerates almost any texture, alkaline, acidic, loam, clay, or sand, and sits comfortably around a neutral 7.0 pH, but the one thing it will not forgive is wet feet. Heavy soil that holds water leads straight to root rot.
If your ground is dense or clay-heavy, work in coarse sand, compost, or other organic matter to open up drainage before planting. In containers, use a free-draining potting mix and make sure the pot has open drainage holes. Set plants 12 to 18 inches (30 to 45 cm) apart so air moves freely between them and a trailing groundcover mat can knit together over the season; crowding traps moisture and encourages powdery mildew.
Rich soil is counterproductive. Excess fertility pushes leafy growth at the expense of flowers, so resist the urge to amend beds heavily.
Watering gazania without killing it
Overwatering is the single most common cause of a failing gazania. Once established, the plant is genuinely drought tolerant and in many regions gets all the moisture it needs from rainfall, needing supplemental water only during dry spells of about three weeks or more.
The rule is simple: water deeply, then let the soil dry out before watering again. Soggy, constantly moist soil brings on stem and root rot, powdery mildew, and leaf spot. Water in the morning so foliage dries quickly through the day, and aim at the base of the plant rather than overhead.
Newly planted gazanias and container-grown plants are the exception. Keep new transplants evenly moist until you see fresh growth, and check pots and hanging baskets often during dry weather, since they dry far faster than open ground. Even then, let the top of the mix dry between drinks.
Feeding: less is more
Gazania needs little to no fertilizer, and overfeeding does real harm. In even moderately fertile soil, skip feeding entirely. Working a little finished compost into the bed at planting is plenty, and beds that are too rich will produce lush foliage with disappointing flowers.
Where gazania grows as a returning perennial, a light annual feed in early spring, such as a teaspoon or two of a balanced 10-10-10 granular fertilizer scattered around the plant and watered in, can support healthy early-season growth. Container plants, which exhaust their potting mix faster, benefit from a fortnightly dose of a potash-rich (high-potassium) liquid feed through summer to keep blooms coming. Outside of these cases, your gazania will be happier hungry.
Deadheading and pruning for nonstop color
Deadheading is the highest-payoff task in gazania care. Pinching or snipping off spent flowers stops the plant from setting seed and redirects that energy into new buds, which keeps blooms coming from early summer right into late fall. Pinching out the growing tips of young plants also encourages bushier, fuller mounds.
Pruning is only relevant where gazania survives as a perennial. Starting in its second season, cut the foliage back hard in late winter or early spring, to roughly a third to half its height (some growers cut to just 2 to 3 inches above the ground), to refresh the plant and trigger vigorous new growth. Remove tired, woody old stems at the same time.
How to grow gazania from seed
Gazania is easy and cheap from seed, and most plants are started this way. Sow indoors 6 to 8 weeks before your last expected frost. Press seeds about a quarter-inch (0.5 cm) deep into a sterile, free-draining seed-starting mix, firm lightly, and keep the medium evenly moist at 68 to 86°F (20 to 30°C). Seedlings usually emerge within one to two weeks.
Move sprouted seedlings to bright light, a sunny sill or a grow light a few inches above the foliage for about 16 hours a day, and hold off on feeding until plants are around a month old. Transplant into individual 3- to 4-inch pots once they have a couple of sets of true leaves. Harden off over a week or so by easing plants into outdoor conditions, then plant out only after all danger of frost has passed and the soil has warmed. Expect the first flowers roughly 12 weeks after sowing.
You can also sow directly in the garden once frost danger is past: clear weeds, sow thinly into well-drained soil, cover lightly, keep evenly moist, then thin the strongest seedlings to 9 to 12 inches (23 to 30 cm) apart. In USDA zones 8 to 10, plants often self-seed and reappear on their own each year, though in colder regions self-sowing is unreliable.
Propagating from cuttings and division
Beyond seed, gazania multiplies easily by basal cuttings and division, which is the only way to reproduce a favorite named variety true to type. Take basal cuttings, taken from the base of new shoots, from late summer into autumn. Cut a 4- to 5-inch (10 to 12 cm) shoot close to the base, strip the lower leaves, pinch out the tip, and set it about an inch deep in moist potting mix. Cover with a clear plastic bag or keep it in a bright spot until roots form, overwinter under cover, and plant out the following early summer.
To divide established clumps, lift a plant about 10 inches (25 cm) tall and cut cleanly through the basal stem into sections, each with its own roots, then replant the divisions as individual plants.
Common pests and diseases
Grown in the right conditions, gazania is remarkably trouble-free, and most of its problems trace back to too much water or too little air. Fungal issues, powdery mildew, downy mildew, botrytis (grey mould), and leaf spot, take hold in damp, humid, crowded plantings, while persistently wet roots cause stem and root rot and edema.
The fix is cultural, not chemical: space plants well, water at the base in the morning, ensure sharp drainage, and keep any indoor or greenhouse plants well ventilated. Removing dead or drying stems promptly also helps.
Weakened, overwatered plants are the ones that attract pests, chiefly aphids, mealybugs, spider mites, and thrips, and aphids in particular tend to appear on plants overwintered indoors. Healthy plants rarely suffer serious damage. Encourage natural predators such as ladybugs, lacewings, and parasitic wasps, and treat stubborn outbreaks with insecticidal soap or a neem oil solution. As a bonus, gazania is generally deer resistant.
Is gazania an annual or a perennial, and will it come back?
This is the question gardeners most often get conflicting answers to, so here is the straight version. Gazania is a tender perennial, but its hardiness is what decides how it behaves in your garden. It reliably returns as a perennial only in the warmest zones, roughly USDA zone 8b or 9 through 11, where winters stay mild and frost is rare or absent. In the Southwest and along the frost-free West Coast, it forms dependable, long-lived clumps and may stay evergreen.
Everywhere colder, which is most of the country, gazania is grown as an annual: it will tolerate a very light frost and bounce back, but a hard freeze kills it. In those climates you simply replant each spring, or save plants by overwintering them indoors. To do that, dig up the plant (or bring in a container) before the first frost, cut it back by up to two-thirds, and keep it in a cool, bright room. Water very sparingly through winter while it sits semi-dormant, then move it back outside once frost danger has passed.
A note on responsible planting
Gazania’s toughness has a flip side worth knowing. The garden treasure flower Gazania rigens is not currently classed as invasive, but its close relative Gazania linearis has naturalized and become a problem in parts of California and Australia, forming dense mats that crowd out native plants along grasslands and creeks. Because rigens self-seeds freely and can grow year-round in mild climates, it makes good sense to plant it thoughtfully in frost-free regions: deadhead to limit seeding, keep it contained, and avoid letting it escape into wild areas. In colder zones where it dies back each winter, there is nothing to worry about.
Get the basics right, full sun, lean fast-draining soil, sparing water, and regular deadheading, and gazania rewards you with months of fearless color in the spots most other flowers refuse to grow. Start a tray from seed this spring, give it the hottest, driest corner you have, and let the treasure flower do what it does best.