Ideal Temperature for Brittle bladderfern

Images of Brittle bladderfern

Brittle bladderfern(Cystopteris fragilis)

Signs of Cold Stress in Brittle bladderfern

Symptoms

Brittle bladderfern tolerates cold well and grows optimally when temperatures are above 60℉. In winter, it needs to stay above 50℉. If temperatures drop below 30℉, even without immediate visible damage in winter, spring may see reduced or absent sprouting.

Solutions

In spring, remove any sections that have not sprouted.

Signs of Heat Stress in Brittle bladderfern

Symptoms

In summer, Brittle bladderfern should be maintained below 75℉. When temperatures surpass 85℉, the plant's foliage may lighten, curl, become prone to sun damage, and in extreme cases, the whole plant might wilt and dry out.

Solutions

Remove any sun-damaged and desiccated portions. Relocate the plant to a spot offering protection from midday and afternoon sun, or provide shade with a cloth. Water the plant in the morning and evening to maintain soil moisture.

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