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The Natural Healing Power of Fire

The Natural Healing Power of Fire

How Natural Systems Reset Spectacularly After Fire

Fire heals nature, but when we experience catastrophic wildfires in our communities, we are inclined to fear fire's destruction. This is understandable. We are accustomed to thinking of fire only in terms of loss, and when our lives, property, and possessions are at risk, fire can be a threat to take very seriously.

In nature, fire has a very different role. A burned-over landscape may feel like loss to us, but it becomes an ecosystem brimming with life. How is this possible?

Read on to learn more about the remarkable power fire has to reset natural systems, making them healthier, more resilient, and a wonder to behold. And stay tuned for our guide to “fire followers” - plants that abound after fire sweeps through.

We are proud to partner with California Native Plant Society and Pepperwood Preserve on this feature.

Fire Ecology, Redwoods, and What Follows

For millennia, California’s habitats have been shaped by fire. Here in the Santa Cruz Mountains coast redwoods find exceptional conditions, as wet winters and cool and foggy summers keep this evergreen supplied with moisture year-round. Constant moisture helps them grow and stay healthy, but it is fire that helps them proliferate. While many of us think about redwoods as fire-resistant, which they are, they are also “fire-adaptive,” meaning that fire is a key factor in their germination, regeneration, and survival.

Fire enriches soils with nutrients for falling redwood seeds to thrive in and it can also unlock seed banks in the base of redwoods. Both strategies ensure new generations of redwoods can thrive, despite fire’s effects on mother trees or other plant species. What are the 10 signs of redwood forests’ recovery after fire?

In the weeks and seasons following a fire, new plant species can emerge in a habitat. The newly nutrient-rich soils of fire-burned habitats can bring forth long-dormant seeds as well. Factors such as increased sunlight and incineration of understory plants, including invasive species, can combine to create exceptional conditions for a brilliant show of flowering plants to emerge from the charred earth.

Cnps Fire Recovery Guide 2019 Cover

From the 2019 CNPS Fire Recovery Guide

Some plants have been called “fire followers” since they are only seen in abundance following fires. A classic fire follower, whispering bells (Emmenanthe penduliflora), remains in the soil seed bank for years and is only seen in profusion in the years after a fire. Bush mallows (Malacothamnus spp.) have long-lived seeds that can remain in the soil seed bank for more than 100 years! While you may see a few bush mallows along a road or trail, a large number of plants germinate following a fire. Bush mallows then flower and set seeds in abundance, only to be outcompeted by other trees and shrubs. The seeds of plants such as these remain dormant in the soil and may appear to be absent in an area for decades.

Get the CNPS Guide here.

Fire Followers

Here in the Santa Cruz Mountains, nature may put on a pretty dazzling display following wildfire. A fair number of plants tolerate fire for different reasons.

Some, like the Santa Cruz Mountains beardtongue (Penstemon rattanii var. kleei), are rooted deeply enough for the roots to survive the fire. The fire enriches the soil, removes species competing for resources, and opens up the forest to allow an abundance of sunlight and when the rains arrive, these lilies flourish.

Others, such as the rare Brewer’s calandrinia (Calandrinia breweri), spend most of their lives in soil seed banks waiting for fire to open up space, sunlight, and resources to bloom, only to hibernate again as the habitat reestablishes itself.

Some native species that need heat to germinate, such as the chaparral shrub chamise (Adenostoma fasciculatum) or the sticky monkeyflower (Mimulus aurantiacus) may be found in abundance this spring.

We also expect to see coast blueblossom (Ceanothus thyrsiflorus) near the redwoods, bush poppy (Dendromecon rigida) among the chaparral, and native clovers.

Stay tuned for our guide to what you might see, and where.

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