Patrick Ivern

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[Patrick Ivern @PatrickIvern]

Full corrected species chart, the pot-weight method, and the July heat-wave pause rule: https://t.co/lX04cEdXIr

#pachypodium #caudex #succulents

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[Patrick Ivern @PatrickIvern]

The ONE true winter-grower is P. namaquanum (the halfmens). Winter-rainfall origin, ~75mm/yr, summer-dormant. It's the only common Pachypodium to taper or cut water from in July.

The acid test for any species: native rainfall season. Summer rain = summer grower.

[Patrick Ivern @PatrickIvern]

Don't trust the calendar or a cheap moisture meter (it reads air-dry in gritty mix). Confirm dry-down by pot weight: weigh after a soak, re-water only when it returns near its bone-dry baseline.

Heat-wave rule: root zone past ~90F? Pause water, shade the pot.

[Patrick Ivern @PatrickIvern]

Per SANBI: almost all Pachypodium reset their growing season in the northern hemisphere. So lamerei, geayi, saundersii, rosulatum, brevicaule, densiflorum, succulentum, makayense — all summer-growers, actively drinking in July. Cutting their water starves them.

[Patrick Ivern @PatrickIvern]

"Sort your Pachypodium into summer-growers and winter-growers" is advice you've probably followed. For this genus it's almost a myth.

Nearly every common species you own is a summer-grower you KEEP watering through July. Exactly one is not.

[Patrick Ivern @PatrickIvern]

The fix is cooling, not water: 30 to 40 percent shade over peak hours, airflow, pots off hot concrete. Overwatering in heat is what actually kills desert rose. Full guide: https://t.co/8yvQ2MxWZy #adenium #desertrose #succulents

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[Patrick Ivern @PatrickIvern]

Your desert rose set a dozen buds, a heat wave hit, and they all yellowed and dropped before opening. Your instinct says water it. That instinct is wrong, and on a caudex succulent it can be fatal. This is bud blast, not thirst.

[Patrick Ivern @PatrickIvern]

Why heat does it: above ~35 C, developing pollen tissue floods with reactive oxygen species and aborts. In maize, 48h at 35 C crashed pollen germination from ~80% to ~20%. The damage happens inside the bud days before it visibly drops.

[Patrick Ivern @PatrickIvern]

Once white tissue scorches, it's dead for good — no re-greening.

The full guide covers the 4-way diagnosis vs. overwatering, the safe-light playbook, and why you shouldn't panic-cut: https://t.co/VyDtlyw9fP

#MonsteraAlbo #Variegata #PlantCare

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[Patrick Ivern @PatrickIvern]

Hold a Monstera Albo leaf to the light and you see the whole problem: the green half is dense, the white half is thin as frosted glass.

That white tissue has no chlorophyll and almost no built-in sunscreen. In July, it's the first thing to cook. 🧵

[Patrick Ivern @PatrickIvern]

Why July? Three curves peak together: highest sun angle, max daily light (~60 vs <5 mol in winter), and thermal-lag heat waves.

A leaf built for weak spring light suddenly faces scorching direct beams at the same windowsill.

[Patrick Ivern @PatrickIvern]

Full diagnostic checklist, the prune-or-wait decision table, and safe heatwave husbandry in the guide:

https://t.co/1we9aQnE7a

#succulents #caudex #plantcare

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[Patrick Ivern @PatrickIvern]

Your Adenia glauca is dropping vines in the July heat and you want to grab the shears. Don't. For a caudiciform, midsummer dieback is usually a survival move, not death. Here's how to know before you cut. 🧵

[Patrick Ivern @PatrickIvern]

Never hard-prune a heat-stressed caudex. Every cut is a wound and strips the shade that protects the caudex.

Cut hard only for active rot: excise to clean tissue, then dry.

And gloves on. Adenia sap is genuinely toxic.

[Patrick Ivern @PatrickIvern]

Full guide: how to tell dormancy from rot, why AC dries the air even at a fine humidity reading, and how to stop it next summer.

https://t.co/Ms1Gn5fsyt

#Alocasia #houseplants #aroids

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[Patrick Ivern @PatrickIvern]

Your Alocasia Frydek dropped every leaf in July and you reached for the watering can. Stop.

In an air-conditioned home a bare Frydek is almost never thirsty. It is reading your living room as winter and retreating to its corm.

[Patrick Ivern @PatrickIvern]

Recovery is simple: warmth (root zone near 70F), water only every 3-4 weeks, no fertilizer, no repotting.

Wake it with heat, not a flood. Aroid corms respond to warm soil, the way Caladium sprouts at 70F.