Prevents root rot and waterlogging
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Nephrolepis exaltata
Boston FernFern
Nephrolepis exaltata, known as the sword fern or Boston fern, is a species of fern in the family Nephrolepidaceae. It is native to the Americas. This evergreen plant can reach as high as 40–90 centimetres (16–35 in), and in extreme cases up to 1.5 metres. It is also known as the Boston sword fern, wild Boston fern, Boston blue bell fern, tuber ladder fern, or fishbone fern.
FamilyNephrolepidaceae
GenusNephrolepis
NativeNorth America
LifespanPerennial
Soil & Fertilizer Guide
The right soil and nutrients help your Boston Fern thrive and grow steadily.
Best Soil for Boston Fern
Choose a soil mix with the right balance of drainage, nutrition, and texture.
Supports healthy growth and strong roots
Ideal pH for nutrient absorption.
Balanced texture with organic matter and drainage.
Soil Mix Recipe
A recommended mix for Boston Fern, based on the available soil data.
40%Garden SoilBase structure
30%CocopeatMoisture retention
20%CompostOrganic nutrients
10%Perlite/SandDrainageFertilizer Guide
Use the fertilizer options from this plant's soil guide and adjust by season.
Organic Fertilizers
Liquid Fertilizers
Chemical Fertilizers
Balanced NPK for Boston FernApply during active growth and reduce in winter.Ideal Ratio N:P:K = Balanced
Feeding Schedule
Adjust based on season, plant age, and growth.
Adjust based on growth
As neededAdjust based on growth
As neededAdjust based on growth
As neededAdjust based on growth
As neededAdjust based on growth
As neededImportant Note:Water the plant lightly before applying fertilizer.
Signs Your Boston Fern Needs Better Soil or Fertilizer
Watch for these signs and take action.
May indicate nutrient or pH imbalance.
Often points to low phosphorus or potassium.
Nutrient stress or compacted soil can slow leaf size.
Can happen when salt or fertilizer builds up.
May mean insufficient nutrients or poor soil quality.