diff --git a/src/main/java/ch/zhaw/gartenverwaltung/io/PlantDatabase.java b/src/main/java/ch/zhaw/gartenverwaltung/io/PlantDatabase.java
new file mode 100644
index 0000000..f0d9bf9
--- /dev/null
+++ b/src/main/java/ch/zhaw/gartenverwaltung/io/PlantDatabase.java
@@ -0,0 +1,12 @@
+package ch.zhaw.gartenverwaltung.io;
+
+import ch.zhaw.gartenverwaltung.types.Plant;
+import ch.zhaw.gartenverwaltung.types.HardinessZone;
+
+import java.util.List;
+import java.util.Optional;
+
+public interface PlantDatabase {
+    List<Plant> getPlantList(HardinessZone zone);
+    Optional<Plant> getPlantById(long id);
+}
diff --git a/src/main/java/ch/zhaw/gartenverwaltung/types/GrowthPhase.java b/src/main/java/ch/zhaw/gartenverwaltung/types/GrowthPhase.java
new file mode 100644
index 0000000..665b895
--- /dev/null
+++ b/src/main/java/ch/zhaw/gartenverwaltung/types/GrowthPhase.java
@@ -0,0 +1,9 @@
+package ch.zhaw.gartenverwaltung.types;
+
+import java.util.Date;
+
+public record GrowthPhase(Date startDate,
+                          Date endDate,
+                          GrowthPhaseType type,
+                          HardinessZone zone) {
+}
diff --git a/src/main/java/ch/zhaw/gartenverwaltung/types/GrowthPhaseType.java b/src/main/java/ch/zhaw/gartenverwaltung/types/GrowthPhaseType.java
new file mode 100644
index 0000000..99e5d2b
--- /dev/null
+++ b/src/main/java/ch/zhaw/gartenverwaltung/types/GrowthPhaseType.java
@@ -0,0 +1,5 @@
+package ch.zhaw.gartenverwaltung.types;
+
+public enum GrowthPhaseType {
+    SOW, PLANT, HARVEST
+}
diff --git a/src/main/java/ch/zhaw/gartenverwaltung/types/HardinessZone.java b/src/main/java/ch/zhaw/gartenverwaltung/types/HardinessZone.java
new file mode 100644
index 0000000..5d0bc91
--- /dev/null
+++ b/src/main/java/ch/zhaw/gartenverwaltung/types/HardinessZone.java
@@ -0,0 +1,9 @@
+package ch.zhaw.gartenverwaltung.types;
+
+/**
+ * Represents the available hardiness zones
+ * (Subject to later expansion)
+ */
+public enum HardinessZone {
+    ZONE_8A
+}
diff --git a/src/main/java/ch/zhaw/gartenverwaltung/types/Plant.java b/src/main/java/ch/zhaw/gartenverwaltung/types/Plant.java
new file mode 100644
index 0000000..99336e7
--- /dev/null
+++ b/src/main/java/ch/zhaw/gartenverwaltung/types/Plant.java
@@ -0,0 +1,11 @@
+package ch.zhaw.gartenverwaltung.types;
+
+import java.util.List;
+
+public record Plant(
+        long id,
+        String name,
+        String description,
+        int spacing,
+        List<GrowthPhase> lifecycle) {
+}