Hydrangea season in NZ: when they flower, what they cost, and how to keep them

Hydrangea season in New Zealand runs from November to March, with December and January the peak. That makes the hydrangea the country's Christmas flower: the first florist stems arrive in late November, the biggest heads and best prices are around Christmas and New Year, and by autumn the flowers fade into antique greens, burgundies and coppers.

In the first week of November the season has not quite started. On 4 November 2026 Wild Poppies' hydrangea collection had no products in it, and Best Blooms' hydrangea bouquet was marked "Sold Out for Today". If you want hydrangeas for an early-November date, ask a florist before you order rather than assume.

When are hydrangeas in season in NZ?

From November to March. Wild Poppies' flower calendar lists hydrangeas for those five months, and garden plants follow the same pattern: buds form through spring, the flowers open in early summer and are at their fullest in December and January. Outside that window, any hydrangeas on sale are imported or glasshouse-grown, and dearer.

The season, month by month

• September and October: new leaves and flower buds on garden plants. No local cut stems yet. Spring is peony season instead.
• November: the first stems reach florists late in the month. Supply is thin, so expect sell-outs and mixed colours.
• December: peak. Blue, pink, white and green heads everywhere, and the classic New Zealand Christmas flower.
• January: still peak, with the biggest heads. Good value, and paired with sunflowers and dahlias.
• February and March: the heads start to age. Colours deepen and turn "antique", which many florists prefer for autumn arrangements and drying.
• April to August: out of season. Garden plants are pruned and dormant.

What is the best month for hydrangeas in NZ?

December. Hydrangeas are at their most plentiful from mid-December to mid-January, which is when they are cheapest and the colour choice is widest. If you want the dusky autumn tones instead, buy in February or March. November is the riskiest month: the season is only just starting and florists often sell out.

How much do hydrangeas cost in NZ?

A delivered bunch of fresh hydrangeas costs about $99 for six stems and $134 for ten from an Auckland florist in November 2026, which works out at roughly $13 to $17 a stem. They cost more per stem than most summer flowers, but one hydrangea head fills as much of a vase as several roses. These are prices a florist publishes on its own site:

• Best Blooms (Auckland), Hydrangeas Bouquet: standard, a vox (water-filled box) of 6 mixed hydrangeas, $99; premium, a vox of 10, $134. Colours are whatever is fresh in store that day. Free delivery to most Auckland suburbs, with a rural fee for outlying areas. Source, read 4 November 2026, when it was sold out for the day.

Worked example

Six stems for $99 is $16.50 a stem; ten stems for $134 is $13.40 a stem. The bigger bunch costs $35 more for four extra heads, so it is the better buy if you want a full vase. For how florists price other bouquets and how delivery fees add up, see what flowers cost in NZ.

Why are some hydrangeas blue and others pink?

It is the soil, not the plant. In acid soil a hydrangea takes up aluminium and flowers blue; in alkaline soil it cannot, and flowers pink or red. White hydrangeas stay white. Tui's growing guide says you can push the colour with lime for pink or aluminium sulphate for blue, with changes showing within a few weeks.

That is also why florist hydrangeas vary. A grower's soil sets the colour, so one batch of "blue" can be a different shade to the next. If a colour matters, say so in the notes when you order and ask the florist to tell you if it is not available.

How long do cut hydrangeas last?

About a week in a vase if they are kept well watered, sometimes longer. Hydrangeas are thirsty and drink through their petals as well as their stems, so they are the first flower in a bouquet to wilt on a hot day. A wilted head usually comes back if you re-cut the stem and submerge the whole head in cool water for an hour.

Vase care

• Re-cut each stem at a sharp angle as soon as they arrive, and stand them in deep, cool water straight away.
• Strip the leaves below the waterline. Hydrangea leaves wilt before the flower does.
• Mist the heads on hot days, and keep the vase out of direct sun and away from the fruit bowl.
• Change the water every second day and re-cut the stems each time.
• If a head flops, submerge it in a sink of cool water for an hour, then re-cut and return it to the vase.
• More steps are in how to make flowers last longer.

Are hydrangeas good for Christmas in NZ?

Yes. They are at their peak in December and are the flower most New Zealanders picture on a Christmas table. Order early for deliveries in the last week before Christmas, because florists' busiest days are 23 and 24 December. Avoid leaving them on a sunny doorstep: hydrangeas wilt faster in heat than almost any other bouquet flower.

When should hydrangeas be cut back in NZ?

In autumn, once flowering finishes, or in early spring before new growth starts, which is the timing in Tui's guide. Cut each flowering stem back to a pair of fat buds. Don't prune hard in late spring: most garden hydrangeas flower on last season's wood, so a late cut removes this summer's flowers.

Can you dry hydrangeas?

Yes, and late-season heads dry best. Pick them in February or March, when the petals feel papery, strip the leaves and stand them in a vase with a few centimetres of water that you let evaporate. They keep their antique colour for months, which is why florists use them in dried arrangements.

Hydrangeas and the rest of summer

Hydrangeas share the summer with dahlias, lisianthus, garden roses and sunflowers. For what comes in and out of season month by month, see what flowers are in season in NZ.